Stephen V. Kolbe v. Martin J. O'Malley , 42 F. Supp. 3d 768 ( 2014 )


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  •           Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 1 of 47
    IN THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MARYLAND
    *
    STEPHEN V. KOLBE, et al.                                   *
    *
    *
    v.                                            *             Civil No. CCB-13-2841
    *
    *
    MARTIN J. O’MALLEY, et al.                                 *
    *
    ******
    AMENDED MEMORANDUM
    On May 16, 2013, in the wake of a number of mass shootings, the most recent of which
    claimed the lives of twenty children and six adult staff members at Sandy Hook Elementary
    School in Connecticut, the Governor of Maryland signed into law the Firearm Safety Act of
    2013. The Act bans certain assault weapons and large-capacity magazines (“LCMs”).
    Plaintiffs Stephen V. Kolbe, Andrew C. Turner, Wink’s Sporting Goods, Inc., Atlantic
    Guns, Inc., Associated Gun Clubs of Baltimore, Inc. (“AGC”), Maryland Shall Issue, Inc.,
    Maryland State Rifle and Pistol Association, Inc., National Shooting Sports Foundation, Inc.
    (“NSSF”), and Maryland Licensed Firearms Dealers Association, Inc. (“MLFDA”)1 brought this
    action against defendants Martin J. O’Malley, Douglas F. Gansler, Marcus L. Brown, and
    Maryland State Police (“MSP”),2 requesting a judgment declaring Maryland’s gun control
    legislation unconstitutional.3 Now pending before the court are the defendants’ motion for
    1
    The plaintiffs are various associations of gun owners and advocates, companies in the business of selling firearms
    and magazines, and individual gun-owning citizens of Maryland.
    2
    All the defendants are sued in their official capacities.
    3
    The defendants do not challenge the plaintiffs’ standing to bring this lawsuit. Exercising its independent duty to
    ensure that jurisdiction is proper, the court is satisfied that individual plaintiffs Kolbe and Turner face a credible
    threat of prosecution under the Firearm Safety Act. See Susan B. Anthony List v. Driehaus, 
    134 S. Ct. 2334
    , 2342
    (2014). Kolbe currently owns a semi-automatic handgun that comes with detachable magazines holding more than
    ten rounds. (Kolbe Decl., ECF No. 55-2, ¶ 3.) Although he does not own a long gun banned by the Firearm Safety
    1
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 2 of 47
    summary judgment and the plaintiffs’ cross-motion for summary judgment. Also pending are
    the plaintiffs’ motion to exclude testimony, which the defendants have opposed, and a number of
    unopposed motions, including the defendants’ motions for protective orders and John Cutonilli’s
    motion for leave to file a brief as amicus curiae. The parties have fully briefed the issues, and
    oral argument was held on July 22, 2014. For the reasons stated below, I find the law
    constitutional, and accordingly will grant the defendants’ motion for summary judgment and
    deny the plaintiffs’ cross motion.4 The plaintiffs’ motion to exclude will be denied, the
    defendants’ motions for protective orders will be granted, and Cutonilli’s motion to file an
    amicus brief will be denied.5
    BACKGROUND
    The Firearm Safety Act of 2013 provides in general that, after October 1, 2013, a person
    may not possess, sell, offer to sell, transfer, purchase, or receive “assault pistols,”6 “assault long
    Act, he indicates that, but for the Act, he would purchase one along with detachable magazines holding more than
    ten rounds. (Id. ¶¶ 4–5.) Turner currently owns three long guns classified as assault weapons, all of which come
    with detachable magazines holding in excess of ten rounds. (Turner Decl., ECF No. 55-3, ¶ 3.) He claims that, but
    for the Act, he would purchase other banned firearms and large capacity magazines. (Id. ¶¶ 4–5.) Cf. New York
    State Rifle and Pistol Ass’n, Inc. v. Cuomo (NYSRPA), -- F. Supp. 2d --, 
    2013 WL 6909955
    , at *5 (W.D.N.Y. Dec.
    31, 2013) (concluding that individual plaintiffs had standing to challenge a New York gun control statute, as they
    owned rifles, pistols, and large capacity magazines regulated by the statute and desired to acquire weapons that the
    statute rendered illegal); see also Ezell v. City of Chicago, 
    651 F.3d 684
    , 695–96 (7th Cir. 2011) (deciding that
    plaintiffs, who wished to engage in range training, had standing to bring a Second Amendment challenge to a
    Chicago ordinance banning firing ranges, reasoning that the very existence of the ordinance implied a threat to
    prosecute). As Kolbe and Turner have standing, jurisdiction is secure, and the court may adjudicate this dispute
    whether or not the additional plaintiffs have standing. See Village of Arlington Heights v. Metro. Hous. Dev. Corp.,
    
    429 U.S. 252
    , 264 & n.9 (1977).
    4
    The court will deny as moot the defendants’ motion to dismiss the complaint and the defendants’ motion to dismiss
    the third amended complaint.
    5
    The court does not find Cutonilli’s proffered amicus brief, which consists of his interpretation of the Second
    Amendment and relevant precedents, useful to the disposition of this case. See Finkle v. Howard Cnty., Md., -- F.
    Supp. 2d --, 
    2014 WL 1396386
    , at *2 (D. Md. Apr. 10, 2014) (noting the trial court’s discretion in deciding whether
    to grant leave to file as amicus curiae and that “a motion for leave to file an amicus curiae brief . . . should not be
    granted unless the court deems the proffered information timely and useful” (alteration in original) (citations and
    internal quotation marks omitted)). The court, however, has considered the amicus briefs proffered by Marylanders
    to Prevent Gun Violence and the Brady Center in support of the defendants. The court has also considered the
    amicus briefs of the Pink Pistols and the National Rifle Association (“NRA”) in support of the plaintiffs.
    6
    The plaintiffs are not challenging the Act’s ban on assault pistols.
    2
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 3 of 47
    guns,”7 and “copycat weapons” (together, “assault weapons”).8 Md. Code Ann., Crim. Law
    (“CR”) §§ 4-301(d), 4-303(a)(2). In addition, the Act states that a person “may not manufacture,
    sell, offer for sale, purchase, receive, or transfer a detachable magazine that has a capacity of
    more than 10 rounds of ammunition for a firearm.”9 Id. § 4-305(b). A person who violates the
    Act “is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 3
    years or a fine not exceeding $5,000 or both,” although different penalties are provided for a
    person who uses an assault weapon or LCM in the commission of a felony or a crime of
    violence. Id. § 4-306.
    The Act exempts from the ban the transfer of an assault weapon from a law enforcement
    agency to a retired law enforcement officer as long as: (1) it is sold or transferred on retirement
    7
    The Firearm Safety Act defines assault long guns by reference to § 5-101(r)(2) of the Public Safety Article. 
    Md. Code Ann., Crim. Law § 4-301
    (b). Thus, the Act bans:
    a firearm that is any of the following specific assault weapons or their copies, regardless of which
    company produced and manufactured that assault weapon: (i) American Arms Spectre da
    Semiautomatic carbine; (ii) AK-47 in all forms; (iii) Algimec AGM-1 type semi-auto; (iv) AR 100
    type semi-auto; (v) AR 180 type semi-auto; (vi) Argentine L.S.R. semi-auto; (vii) Australian
    Automatic Arms SAR type semi-auto; (viii) Auto-Ordnance Thompson M1 and 1927 semi-
    automatics; (ix) Barrett light .50 cal. semi-auto; (x) Beretta AR70 type semi-auto; (xi) Bushmaster
    semi-auto rifle; (xii) Calico models M-100 and M-900; (xiii) CIS SR 88 type semi-auto; (xiv)
    Claridge HI TEC C-9 carbines; (xv) Colt AR-15, CAR-15, and all imitations except Colt AR-15
    Sporter H-BAR rifle; (xvi) Daewoo MAX 1 and MAX 2, aka AR 100, 110C, K-1, and K-2; (xvii)
    Dragunov Chinese made semi-auto; (xviii) Famas semi-auto (.223 caliber); (xix) Feather AT-9
    semi-auto; (xx) FN LAR and FN FAL assault rifle; (xxi) FNC semi-auto type carbine; (xxii)
    F.I.E./Franchi LAW 12 and SPAS 12 assault shotgun; (xxiii) Steyr-AUG-SA semi-auto; (xxiv)
    Galil models AR and ARM semi-auto; (xxv) Heckler and Koch HK-91 A3, HK-93 A2, HK-94 A2
    and A3; (xxvi) Holmes model 88 shotgun; (xxvii) Avtomat Kalashnikov semiautomatic rifle in
    any format; (xxviii) Manchester Arms “Commando” MK-45, MK-9; (xxix) Mandell TAC-1 semi-
    auto carbine; (xxx) Mossberg model 500 Bullpup assault shotgun; (xxxi) Sterling Mark 6; (xxxii)
    P.A.W.S. carbine; (xxxiii) Ruger mini-14 folding stock model (.223 caliber); (xxxiv) SIG 550/551
    assault rifle (.223 caliber); (xxxv) SKS with detachable magazine; (xxxvi) AP-74 Commando type
    semi-auto; (xxxvii) Springfield Armory BM-59, SAR-48, G3, SAR-3, M-21 sniper rifle, M1A,
    excluding the M1 Garand; (xxxviii) Street sweeper assault type shotgun; (xxxix) Striker 12 assault
    shotgun in all formats; (xl) Unique F11 semi-auto type; (xli) Daewoo USAS 12 semi-auto
    shotgun; (xlii) UZI 9mm carbine or rifle; (xliii) Valmet M-76 and M-78 semi-auto; (xliv) Weaver
    Arms “Nighthawk” semi-auto carbine; or (xlv) Wilkinson Arms 9mm semi-auto “Terry”.
    Md. Code Ann., Pub. Safety (“PS”) § 5-101(r)(2). According to the plaintiffs, the most widely owned firearms of
    those banned by the Act are the AR-15, the AK-47, and their copies.
    8
    Individuals who lawfully possessed assault long guns or copycat weapons before October 1, 2013, however, may
    continue to possess those weapons. 
    Md. Code Ann., Crim. Law § 4-303
    (b)(3).
    9
    The court will refer to such detachable magazines as “large capacity magazines” or “LCMs.” It does not appear
    that CR § 4-305 bans mere possession of LCMs.
    3
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 4 of 47
    or (2) it “was purchased or obtained by the person for official use with the law enforcement
    agency before retirement.” Id. § 4-302(7). The Act also exempts retired law enforcement
    officers from the ban on LCMs. Id. § 4-305(a)(2), (b).
    Just days before the Firearm Safety Act was to go into effect, on September 26, 2013, the
    plaintiffs filed their complaint, followed the next day by a motion for a temporary restraining
    order (“TRO”), challenging the law’s constitutionality with respect to its ban on assault long
    guns, copycat weapons, and LCMs. The court heard argument on the TRO on October 1, 2013,
    and decided that the plaintiffs did not show they were entitled to the extraordinary relief.
    Following the hearing on the TRO, the parties agreed that, instead of considering a preliminary
    injunction request, the court should proceed to consider this matter on the merits.
    Accordingly, the court will now consider the plaintiffs’ claims that the Firearm Safety
    Act (1) infringes their Second Amendment rights,10 (2) violates the Equal Protection Clause of
    the Fourteenth Amendment, and (3) is void for vagueness.
    ANALYSIS
    I.      Summary Judgment Standard
    Federal Rule of Civil Procedure 56(a) provides that summary judgment should be granted
    “if the movant shows that there is no genuine dispute as to any material fact and the movant is
    entitled to judgment as a matter of law.” Fed. R. Civ. P. 56(a) (emphasis added). Whether a fact
    is material depends upon the substantive law. Anderson v. Liberty Lobby, Inc., 
    477 U.S. 242
    ,
    247–48 (1986). Accordingly, “the mere existence of some alleged factual dispute between the
    parties will not defeat an otherwise properly supported motion for summary judgment.” 
    Id.
     “A
    10
    The plaintiffs challenge the bans imposed by the Firearm Safety Act on their face, not merely as applied to their
    particular circumstances. See, e.g., Ezell v. City of Chicago, 
    651 F.3d 684
    , 698 (7th Cir. 2011) (explaining that, in a
    facial challenge, “[t]he remedy is necessarily directed at the statute itself and must be injunctive and declaratory; a
    successful facial attack means the statute is wholly invalid and cannot be applied to anyone” (emphasis in original)).
    4
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 5 of 47
    party opposing a properly supported motion for summary judgment ‘may not rest upon the mere
    allegations or denials of [his] pleadings,’ but rather must ‘set forth specific facts showing that
    there is a genuine issue for trial.’” Bouchat v. Baltimore Ravens Football Club, Inc., 
    346 F.3d 514
    , 522 (4th Cir. 2003) (alteration in original) (quoting Fed. R. Civ. P. 56(e)). The court must
    view the evidence in the light most favorable to the nonmovant and draw all justifiable
    inferences in his favor. Scott v. Harris, 
    550 U.S. 372
    , 378 (2007) (citation omitted); see also
    Greater Baltimore Ctr. for Pregnancy Concerns, Inc. v. Mayor and City Council of Baltimore,
    
    721 F.3d 264
    , 283 (4th Cir. 2013) (citation omitted). At the same time, the court must not yield
    its obligation “to prevent factually unsupported claims and defenses from proceeding to trial.”
    Bouchat, 
    346 F.3d at 526
     (citation and internal quotation marks omitted).
    II.      Motion to Exclude Testimony
    The plaintiffs ask the court to exclude various expert and fact testimony offered by the
    defendants. Rule 702 of the Federal Rules of Evidence, which governs the admissibility of
    expert testimony, states:
    A witness who is qualified as an expert by knowledge, skill, experience, training,
    or education may testify in the form of an opinion or otherwise if: (a) the expert’s
    scientific, technical, or other specialized knowledge will help the trier of fact to
    understand the evidence or to determine a fact in issue; (b) the testimony is based
    on sufficient facts or data; (c) the testimony is the product of reliable principles
    and methods; and (d) the expert has reliably applied the principles and methods to
    the facts of the case.
    The party seeking to introduce expert testimony has the burden of establishing its admissibility
    by a preponderance of the evidence. Daubert v. Merrell Dow Pharm., 
    509 U.S. 579
    , 592 n.10
    (1993). A district court is afforded “great deference . . . to admit or exclude expert testimony
    under Daubert.” TFWS, Inc. v. Schaefer, 
    325 F.3d 234
    , 240 (4th Cir. 2003) (citations and
    internal quotation marks omitted); see also Daubert, 
    509 U.S. at 594
     (“The inquiry envisioned
    5
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 6 of 47
    by Rule 702 is . . . a flexible one . . . .”). “In applying Daubert, a court evaluates the
    methodology or reasoning that the proffered scientific or technical expert uses to reach his
    conclusion; the court does not evaluate the conclusion itself,” Schaefer, 
    325 F.3d at 240
    ,
    although “conclusions and methodology are not entirely distinct from one another,” General
    Elec. Co. v. Joiner, 
    522 U.S. 136
    , 146 (1997). In essence, the court acts as gatekeeper, only
    admitting expert testimony where the underlying methodology satisfies a two-pronged test for
    (1) reliability and (2) relevance. See Daubert, 
    509 U.S. at 589
    .
    Rule 701 of the Federal Rules of Evidence, which governs the admissibility of lay
    testimony, states:
    If a witness is not testifying as an expert, testimony in the form of an opinion is
    limited to one that is: (a) rationally based on the witness’s perception; (b) helpful
    to clearly understanding the witness’s testimony or to determining a fact in issue;
    and (c) not based on scientific, technical, or other specialized knowledge within
    the scope of Rule 702.
    “[L]ay opinion testimony must be based on personal knowledge . . . .” United States v. Perkins,
    
    470 F.3d 150
    , 155–56 (4th Cir. 2006) (emphasis in original). “At bottom, . . . Rule 701 forbids
    the admission of expert testimony dressed in lay witness clothing . . . .” 
    Id. at 156
     (quoting
    United States v. Santos, 
    201 F.3d 953
    , 963 (7th Cir. 2000)).
    A. Koper
    Dr. Christopher Koper, as the plaintiffs admit, is the only social scientist to have studied
    the effects of the federal assault weapons ban that was in place from 1994 to 2004. (See Koper
    Decl., ECF No. 44-7, ¶ 5.) In addition, he has studied issues related to firearms policy for twenty
    years, publishing numerous studies in peer-reviewed journals on topics related to crime and
    firearms. (Id. ¶¶ 3, 6–7.) The plaintiffs ask the court to exclude Koper’s expert testimony on
    two grounds, neither of which is persuasive.
    6
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 7 of 47
    First, the plaintiffs claim that Koper’s opinion that the Firearm Safety Act is likely to
    advance Maryland’s interest in protecting public safety is not based on sufficient data, as
    required by Rule 702, because his study of the federal ban found that the ban did not decrease
    firearms-related crimes, the lethality and injuriousness of gun crimes, or the criminal use of
    banned LCMs. (Pls.’ Mot. to Exclude, ECF No. 65, at 3–4.) Further, the plaintiffs claim, his
    previous research revealed that state-level bans did not result in any reduction in crime. (Id. at
    4.) The plaintiffs also allege that many of Koper’s opinions regarding the efficacy of the Firearm
    Safety Act contradict deposition testimony. (Id. at 7.)
    As an initial matter, the plaintiffs often mischaracterize Koper’s statements and his
    research, cherry-picking items and presenting them out of context. For example, they cite
    Koper’s acknowledgment in 2004 that a few studies suggest state-level assault weapons bans did
    not reduce crime as inconsistent with his conclusions regarding the Firearm Safety Act.
    (Compare Koper Decl., Ex. B, at 81 n.95 (“[A] few studies suggest that state-level AW bans
    have not reduced crime . . . .”), with Koper Decl. ¶¶ 77–86 (opining that the Firearm Safety Act
    is likely to, inter alia, limit the number of long guns in Maryland, limit the number of LCMs in
    circulation, reduce the number and lethality of gunshot victimizations, and reduce the use of
    assault weapons and LCMs in crime).) But the plaintiffs omit Koper’s numerous qualifications
    of those state studies. (See Koper Decl., Ex. B, at 81 n.95 (“[I]t is hard to draw definitive
    conclusions from these studies . . . : there is little evidence on how state AW bans affect the
    availability and use of AWs . . . ; studies have not always examined the effects of these laws on
    gun homicides and shootings . . . ; and the state AW bans that were passed prior to the federal
    ban . . . were in effect for only three months to five years . . . before the imposition of the federal
    ban, after which they became largely redundant with the federal legislation and their effects more
    7
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 8 of 47
    difficult to predict and estimate.”).) Even ignoring the context in which Koper’s 2004 statement
    was made, there is nothing necessarily inconsistent about a 2004 statement that a few state-level
    bans were not shown to reduce overall crime and Koper’s opinion that a different state-level ban,
    enacted in 2013, likely will reduce the negative effects of gun violence.
    To the extent Koper’s prior research concluded the federal ban was not effective in
    various ways, his opinions in the current case are based on several other pieces of data, which the
    plaintiffs entirely ignore in arguing his testimony should be excluded. (See, e.g., Koper Decl. ¶¶
    13–43.) Further, Koper is clear in noting that the federal weapons ban had several features that
    may have limited its efficacy that are not present with Maryland’s ban. (Id. at ¶¶ 79–81.)
    The plaintiffs also challenge Koper’s testimony on the basis that he is unable to conclude
    the Firearm Safety Act will have the desired effects to a “reasonable degree of scientific
    certainty.” It appears the plaintiffs are claiming that expert opinions may not be considered in
    determining the constitutionality of the bans at issue here unless they are stated with such
    scientific certainty. In making their argument, however, the plaintiffs fail to recognize that the
    inquiry under Rule 702, as noted above, is flexible, see Daubert, 
    509 U.S. at 594
    , and that,
    although a reasonable degree of scientific certainty is required for the admission of expert
    testimony to prove causation in medical malpractice cases—the types of cases the plaintiffs cite
    to support their position—applying such a standard here would misapprehend the court’s inquiry.
    In attempting to further the state’s important interests, the legislature is not required to refrain
    from acting until it has evidence demonstrating proposed legislation will certainly have the
    desired effects. It is allowed to make predictions. See Turner Broadcasting Sys., Inc. v. F.C.C.
    (Turner I), 
    512 U.S. 622
    , 665 (1994) (“Sound policymaking often requires legislators to forecast
    future events and to anticipate the likely impact of these events based on deductions and
    8
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 9 of 47
    inferences for which empirical support may be unavailable.”). The court will defer to those
    predictions as long as they are the result of reasonable inferences and deductions based on
    substantial evidence. See Heller v. District of Columbia (Heller III),-- F. Supp. 2d --, 
    2014 WL 1978073
    , at *8 (D.D.C. May 15, 2014) (citing Turner Broadcasting Sys., Inc. v. F.C.C. (Turner
    II), 
    520 U.S. 180
    , 211 (1997)). Koper’s testimony is well-suited to answer the question facing
    the court and is precisely the kind of evidence upon which other courts have relied in assessing
    similar assault weapon and LCM bans. See Heller v. District of Columbia (Heller II), 
    670 F.3d 1244
    , 1263 (D.C. Cir. 2011); Fyock v. City of Sunnyvale, -- F. Supp. 2d --, 
    2014 WL 984162
    , at
    *8–9 (N.D. Cal. Mar. 5, 2014); San Francisco Veteran Police Officers Ass’n v. San Francisco, --
    F. Supp. 2d --, 
    2014 WL 644395
    , at *5, *7 (N.D. Cal. Feb. 19, 2014); Shew v. Malloy, -- F. Supp.
    2d --, 
    2014 WL 346859
    , at *9 n.50 (D. Conn. Jan. 30, 2014); NYSRPA, 
    2013 WL 6909955
    , at
    *15–18.11 The court will not, therefore, exclude Koper’s testimony.
    B. Webster
    The plaintiffs argue that Dr. Daniel Webster’s testimony should be excluded because he
    has not conducted any original research but rather has relied on the work of Koper and the data
    he acquired from the Mother Jones publication.12
    It is acceptable for an expert to rely on the studies of other experts in reaching his own
    opinions, although courts have excluded testimony where the expert failed to conduct any
    independent examination or research to ensure the reliability of the information on which he
    relies. See Doe v. Ortho-Clinical Diagnostics, Inc., 
    440 F. Supp. 2d 465
    , 470 (M.D.N.C. 2006)
    11
    It does not appear that the admissibility of similar testimony by Koper was challenged in any other case in which
    he was cited.
    12
    The plaintiffs also claim that Webster’s opinions in paragraphs seven through nine of his declaration, as to the
    dangerousness of particular firearms, are outside the scope of his expertise and, in any event, are not relevant to the
    present case. Because the court does not rely on or refer to Webster’s opinions in that part of his declaration for its
    findings here, the court need not resolve the issue.
    9
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 10 of 47
    (citation and internal quotation marks omitted) (“Where proffered expert testimony is not based
    on independent research, but instead on such a literature review, the party proffering such
    testimony must come forward with other objective, verifiable evidence that the testimony is
    based on scientifically valid principles. One means of showing this is by proof that the research
    and analysis supporting the proffered conclusions have been subjected to normal scientific
    scrutiny through peer review and publication.”); Berlyn, Inc. v. Gazette Newspapers, Inc., 
    214 F. Supp. 2d 530
    , 539–40 (D. Md. 2002) (excluding an expert because his methods were “wholly
    lacking in independent research,” and there was no evidence that his opinion was “the product of
    reliable principles and methods, and [was] based upon sufficient facts or data”).
    Here, over a nearly thirty-year career, Webster has devoted most of his research to gun-
    related injuries and violence, has directed numerous studies related to gun violence and its
    prevention, and has published seventy-nine articles in scientific, peer-reviewed journals. (See
    Webster Decl., ECF No. 44-6, ¶¶ 2–5.) Although it is true he relies on Koper’s research in his
    declaration, Webster served as editor of the book that included Koper’s 2013 report and, as
    editor, he subjected Koper’s 2013 report to a peer review process. (See Koper Decl., Ex. A;
    Webster Dep., ECF No. 70-4, at 57:11–18.) Likewise, Webster relies on data from the Mother
    Jones publication, but the data were subject to independent analysis by Koper and his graduate
    student. (See Koper Decl. ¶¶ 25–28.) In any event, the plaintiffs have offered nothing to suggest
    the Mother Jones data are unreliable or inaccurate. Accordingly, the court is satisfied that the
    information on which Webster relies in forming his expert opinion is reliable, and will not
    exclude his testimony.
    C. Vince and Law Enforcement Officers
    The plaintiffs argue that the “ballistics opinions” of Joseph Vince and executive law
    10
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 11 of 47
    enforcement officers should be excluded, as the opinions are outside the scope of their
    expertise.13 They do not, however, identify the paragraphs of Vince’s declaration to which they
    take objection. As the court neither relies on nor refers to any testimony by Vince on
    “ballistics,” the court need not resolve this issue. Turning to the disputed testimony offered by
    Baltimore County Police Department Chief James Johnson, Baltimore City Police Department
    Commissioner Anthony Batts, and Prince George’s County Police Department Deputy Chief
    Henry Stawinski, the court agrees with the defendants that none of this testimony contains expert
    opinions on ballistics. Johnson merely acknowledges that some shots that may be loaded into a
    shotgun have a risk of over-penetration;14 Batts offers testimony about research he directed and
    which was reported to him in connection with his official duties; and Stawinksi testifies on his
    personal observations of assault weapons piercing soft body armor. (See Johnson Decl., ECF
    No. 44-3, ¶ 35 (opining that “[a] shotgun would . . . be a superior self-defense weapon to an
    assault weapon, at least if it is loaded with [an] appropriate shot that does not give rise to too
    great a risk of over penetration”); Batts Decl., ECF No. 44-4, ¶ 21 (testifying about research he
    personally directed regarding various rounds fired by officers under his command); Stawinski
    Decl., ECF No. 44-5, ¶ 30 (stating that “[m]ost assault weapons have significant penetration
    capabilities that are especially dangerous to both law enforcement officers and civilians alike”).)
    The officers’ testimony, based on their personal knowledge and experiences, is properly
    admissible.15
    D. Allen
    13
    Additionally, the plaintiffs claim that Vince’s “firearms-related opinions,” (see Vince Decl., ECF No. 44-8, ¶¶ 10–
    19, 31–32), should be excluded as outside his area of expertise. Because the court neither relies on nor refers to
    Vince’s opinions in that part of his declaration, the court does not need to decide the issue.
    14
    Johnson’s familiarity with shotguns stems from his formal law enforcement training, as well as his personal
    ownership of a shotgun that he uses for hunting. (See Johnson Dep., ECF No. 62-2, at 6:8–12; 67:5–69:19.)
    15
    In any event, the court does not rely on or refer to Johnson’s or Batts’s disputed testimony, and the plaintiffs,
    therefore, are not prejudiced by its admission.
    11
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 12 of 47
    The plaintiffs claim that the court should exclude Lucy Allen’s expert opinions related to
    the frequency with which the banned weapons are used defensively for two reasons. First, they
    claim that her conclusions are based on the coding of stories she did not independently verify.
    The court notes, however, that the database which Allen studied is maintained by the NRA,
    suggesting, if anything, that her study may have a bias in favor of finding more instances of the
    defensive use of firearms. Moreover, the plaintiffs proffer nothing to suggest the stories
    collected by the NRA are unreliable or inaccurate. Second, they argue that she cannot base her
    opinions on stories, which, they claim, are inappropriate anecdotal evidence. In light of the
    apparent dearth of other evidence demonstrating that the firearms at issue here are used for self-
    defense, Allen’s use of the NRA database is appropriate and acceptable. Not only do the cases to
    which the plaintiffs cite for the opposite conclusion not stand for the proposition that an expert
    can never rely on anecdotal evidence, they expressly contemplate the use of such evidence.16
    See Allison v. McGhan Med. Corp., 
    184 F.3d 1300
    , 1316 (11th Cir. 1999) (acknowledging that
    case reports do not provide reliable scientific proof of causation, but recognizing their
    importance for “raising questions and comparing clinicians’ findings”).17
    E. Johnson and Bulinski
    Finally, the plaintiffs seek to exclude Johnson’s testimony in front of the Maryland
    General Assembly and Maximillian Bulinski’s declaration because the defendants did not
    disclose them in accordance with Federal Rule of Civil Procedure 26(a) or (e). See also Fed. R.
    Civ. P. 37(c)(1) (“If a party fails to provide information or identify a witness as required by Rule
    26(a) or (e), the party is not allowed to use that information or witness to supply evidence on a
    16
    The court fails to see how one would find the rate with which guns are used for defensive purposes without
    relying on anecdotal evidence.
    17
    To the extent the plaintiffs challenge Allen’s reliance on the Mother Jones data, their challenge must fail. As
    explained above, the data were subject to independent review by Koper and his graduate student.
    12
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 13 of 47
    motion . . . .”). Evidence a party has failed to timely disclose will not be excluded if the failure is
    substantially justified or harmless. S. States Rack and Fixture, Inc v. Sherwin-Williams Co., 
    318 F.3d 592
    , 595–96 (4th Cir. 2003) (articulating five factors the court should consider when
    deciding whether exclusion is proper: the surprise to the party against whom the evidence is
    offered, the ability of the party to cure that surprise, the extent to which the testimony would
    disrupt trial, the explanation for the failure, and the importance of the testimony).
    Any failure to disclose Johnson’s testimony in front of the General Assembly was
    harmless. The portions of Johnson’s testimony relevant to the plaintiffs’ challenge here are not
    substantively different from his statements in his declaration. Nor do the plaintiffs allege any
    manner in which they are different. The plaintiffs thus were not prejudiced because they were
    not deprived of a full opportunity to examine Johnson on his views of the Firearm Safety Act or
    gun-related crime.
    The defendants’ failure to disclose Bulinski’s testimony is substantially justified. The
    defendants first had notice they would need to investigate evidence related to Bulinski’s
    declaration when the plaintiffs filed their opposition memorandum on March 17, 2014. The
    defendants did not learn they would want to offer Bulinski’s testimony until March 27, 2014,
    when he attempted to make the purchases about which he testifies. This was only fifteen days
    before they filed their reply memorandum. In addition, because the testimony is responsive to
    the plaintiffs’ evidence, the testimony does not raise new issues of which the plaintiffs were
    unaware such that the plaintiffs are prejudiced. In fact, the plaintiffs do not claim any prejudice
    in their papers. Further, Bulinski’s testimony offers valuable information given the plaintiffs’
    limited evidence as to the availability of firearms magazines with capacities of ten rounds or less.
    The court will not exclude Johnson’s testimony or Bulinski’s declaration.
    13
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 14 of 47
    III.      Second Amendment
    The plaintiffs claim that Maryland’s ban on various assault weapons and LCMs infringes
    their Second Amendment rights. The Second Amendment states: “A well regulated Militia,
    being necessary to the security of a free State, the right of the people to keep and bear Arms shall
    not be infringed.” U.S. Const. amend. II. It is applicable to the states through the Fourteenth
    Amendment. McDonald v. City of Chicago, Ill., 
    130 S. Ct. 3020
    , 3026, 3050 (2010).
    In District of Columbia v. Heller (Heller I), the Supreme Court found that the Second
    Amendment codified a pre-existing, individual right to keep and bear arms and that its core
    protection was the right of “law-abiding, responsible citizens to use arms in defense of hearth
    and home.” 
    554 U.S. 570
    , 592, 635 (2008). Accordingly, the Court found that a complete
    prohibition on handguns—the class of weapon “overwhelmingly chosen by American society for
    [the] lawful purpose [of self-defense]” in the home—infringed on the central protection of the
    Second Amendment and thus failed any level of constitutional scrutiny. 
    Id.
     at 628–29; see also
    Woollard v. Gallagher, 
    712 F.3d 865
    , 874 (4th Cir. 2013) (noting that self-defense in the home is
    the “core protection” of the Second Amendment right).
    The Court also recognized, however, that the right to bear arms is not unlimited, and
    articulated some of its boundaries. With respect to the types of weapons protected, the Court
    found that the Second Amendment does not protect “a right to keep and carry any weapon
    whatsoever in any manner whatsoever and for whatever purpose.” Heller I, 
    554 U.S. at 626
    .
    Instead, it only protects those that are “‘in common use at the time,’”18 and “typically possessed
    18
    The Supreme Court has not articulated the time during which common use is measured. Most courts that have
    addressed the issue have looked at the current use of a weapon. At least one court has noted the Supreme Court’s
    failure to clarify the time frame, although it still referenced statistics on current use. See Shew, 
    2014 WL 346859
    , at
    *5 & n.37.
    14
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 15 of 47
    by law-abiding citizens for lawful purposes.”19 Id. at 625, 627 (quoting Miller, 
    307 U.S. 174
    ,
    179 (1939)); see also Heller II, 
    670 F.3d at 1260
     (“[W]e must also ask whether the prohibited
    weapons are typically possessed by law-abiding citizens for lawful purposes; if not, then they are
    not the sorts of ‘Arms’ protected by the Second Amendment.” (internal citations omitted)).
    Further, the Court found “longstanding” regulations of firearms “presumptively lawful,”
    identifying as examples regulations prohibiting the possession of firearms by felons or the
    mentally ill, prohibiting the carrying of firearms in “sensitive places,” or imposing conditions on
    the commercial sale of firearms. Heller I, 
    554 U.S. at
    626–27 & n.26.
    Given that the right to bear arms is not boundless, the Fourth Circuit, like several others,
    applies a two-part approach to Second Amendment claims. Woollard, 712 F.3d at 874–75; see
    also Peruta v. Cnty. of San Diego, 
    742 F.3d 1144
    , 1150 (9th Cir. 2014); Nat’l Rifle Ass’n of Am.,
    Inc. v. Bureau of Alcohol, Tobacco, Firearms, & Explosives, 
    700 F.3d 185
    , 194 (5th Cir. 2012);
    United States v. Greeno, 
    679 F.3d 510
    , 518 (6th Cir. 2012); Heller II, 
    670 F.3d at 1252
    ; Ezell,
    651 F.3d at 703–04; United States v. Reese, 
    627 F.3d 792
    , 800–01 (10th Cir. 2010). First, the
    court determines whether the challenged law “imposes a burden on conduct falling within the
    scope of the Second Amendment’s guarantee.” Woollard, 712 F.3d at 875 (quoting United
    States v. Chester, 
    628 F.3d 673
    , 680 (4th Cir. 2010)). “This historical inquiry seeks to determine
    whether the conduct at issue was understood to be within the scope of the right at the time of
    ratification.” 
    Id.
     (quoting Chester, 
    628 F.3d at 680
    ) (internal quotation marks omitted). If it was
    not, then the law regulating such conduct is valid. 
    Id.
     If the conduct does fall within the scope
    of the Second Amendment right, then the court must move to the second part of the inquiry and
    19
    With its holding, the Court rejected claims that the Second Amendment protects the right to possess weapons that
    would be effective in modern military combat, such as M-16 rifles, but that are “highly unusual in society at large.”
    Heller I, 
    554 U.S. at
    627–28. In doing so, the Court noted that “the conception of the militia at the time of the
    Second Amendment’s ratification was the body of all citizens capable of military service, who would bring the sorts
    of lawful weapons that they possessed at home to militia duty.” 
    Id. at 627
    .
    15
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 16 of 47
    apply “the appropriate form of means-end scrutiny.” 
    Id.
     (quoting Chester, 
    628 F.3d at 680
    )
    (internal quotation marks omitted).
    A. Infringement of the Second Amendment Right
    The court must first determine whether the weapons at issue here are of the type falling
    within the Second Amendment’s scope. The defendants do not appear to claim Maryland’s ban
    on assault weapons and LCMs is longstanding such that it is presumptively valid. See Heller II,
    
    670 F.3d at 1253
     (“A requirement of newer vintage is not . . . presumed valid.”). The court must
    instead evaluate whether the banned assault long guns and LCMs are in common use for lawful
    purposes. See Heller I, 
    554 U.S. at 625, 627
    ; Heller II, 
    670 F.3d at 1260
    ; Shew, 
    2014 WL 346859
    , at *5; NYSRPA, 
    2013 WL 6909955
    , at *10–11. If they are not—or if they are dangerous
    and unusual—they fall outside the Amendment’s protections, and Maryland’s law banning the
    weapons is valid without further analysis. See Heller I, 
    554 U.S. at 627
    ; Woollard, 712 F.3d at
    875.20
    The plaintiffs contend that, according to data from the MSP, the banned long guns have
    been generally increasing in popularity since 1995. (See Dalaine Brady Decl., Ex. C, ECF No.
    44-10.) Indeed, over the past three years in Maryland, there have been approximately 35,000
    transfers of assault weapons and frames and receivers of such weapons.21 (Id.) The plaintiffs
    also claim that at least 5 million of the banned assault weapons are possessed nationwide, and
    20
    There is an apparent tension between the requirement of a historical analysis that examines the scope of the right
    as understood in 1868, see McDonald, 
    130 S.Ct. at
    3041–42, and the need to evaluate whether the banned firearms
    are “in common use” at the present time, but it is not necessary to address that tension for purposes of this opinion.
    It may be that the purpose of the right to bear arms—i.e., self-defense—is measured at the time of ratification, while
    the kind of weapons used for that purpose—e.g., handguns or assault rifles—is measured at the time the state law is
    passed.
    21
    Since 1994, Maryland has gathered information regarding the transfer of regulated firearms. (See Brady Decl. ¶¶
    21–29.) It is important to note, however, that all transfers were recorded, even if the transfer was of a firearm
    previously transferred. (Id. ¶ 33.) Thus, for example, if a single firearm was transferred five times over the past two
    decades, it would appear as five separate transactions. (Id.) In this way, the information collected by Maryland may
    overstate the number of regulated firearms.
    16
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 17 of 47
    that the number may be as high as 8.2 million. (See Johnson Dep., ECF No. 55-17, at 43:2–9;
    see also James Curcuruto Decl., Ex. A, ECF No. 55-9, ¶ 1 (“Figures from the Bureau of Alcohol,
    Tobacco, Firearms and Explosives (ATF) Annual Firearms Manufacturers and Exports Reports
    (AFMER) show that between 1990 and 2012, United States manufacturers produced
    approximately 4,796,400 AR-platform rifles for sale in the United States commercial
    marketplace. . . . During these same years, . . . approximately 3,415,000 AR- and AK-platform
    rifles were imported into the United States for sale in the commercial marketplace.”).) The
    popularity of these firearms, the plaintiffs claim, is further evidenced by the frequency with
    which they are manufactured and sold. (See Curcuruto Decl., Ex. A, ¶ 1 (noting that, in 2012,
    more AR- and AK-platform rifles were manufactured in or imported to the United States than the
    most commonly sold vehicle); see also id. ¶ 3 (indicating that retailers reported that AR- and
    AK-platform rifles accounted for 20.3% of the firearms they sold in 2012).)
    As for the LCMs banned by the Firearm Safety Act, the plaintiffs assert that they are
    standard with the purchase of most new pistols, and have been sold in the civilian market for
    over one hundred years. (See Guy Rossi Decl., Ex. A, ECF No. 55-11, at 2; see also James
    Supica Decl., Ex. A, ECF No. 55-14, at 7.) They claim that, across the nation, LCMs represent
    seventy-five million, or forty-six percent, of all magazines in U.S. consumer possession between
    1990 and 2012. (Curcuruto Decl., Ex. A, ¶ 6; see also Koper Decl., Ex. B, at 1 (stating that gun
    industry sources estimated that, as of 1995, there were 25 million LCMs available in the United
    States, and that an additional 4.7 million LCMs were imported into the country from 1995 to
    2000).) Marylanders owned about 725,000 of those LCMs during that time. (Curcuruto Decl.,
    Ex. A, ¶ 6.) Based on the absolute numbers of assault weapons and LCMs, the plaintiffs ask the
    court to conclude that they are in common use.
    17
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 18 of 47
    Further, the plaintiffs argue that the banned assault weapons and LCMs are commonly
    possessed for self-defense and competitive marksmanship.22 They claim that assault weapons
    banned by the Firearm Safety Act represent about sixty percent of the firearms used at AGC’s
    firing range in Marriottsville, Maryland. (See John Josselyn Decl., ECF No. 55-6, ¶ 7.) In
    addition, “[f]or the past quarter of a century AR15’s have consistently been used by winning
    competitors at the U.S. Civilian Marksmanship National Match target shooting championships
    held each year at Camp Perry, Ohio.” (Gary Roberts Decl., ECF No. 55-10, ¶ 18.) Likewise,
    some competitions “are designed specifically for pistols, rifles and shotguns capable of holding a
    greater number of rounds than the Act permits.” (Rossi Decl., Ex. A, at 2.) Finally, the plaintiffs
    assert that the banned firearms and LCMs are used in a small percentage of crime in Maryland,
    are used infrequently in mass shootings and murders of law enforcement officers, and are no
    more dangerous to law enforcement officers than other rifles. (See Mark Gius Decl., Ex. A, ECF
    No. 55-12, at 2 (estimating that, at most, 2.52% of murder victims in the United States were
    killed with assault rifles); Table 27, Law Enforcement Officers Feloniously Killed, ECF No. 55-
    28 (indicating that, from 2003 to 2012, of the 493 law enforcement murders caused by firearms,
    92 of those, or 18.7%, involved rifles, an unspecified subset of which were assault rifles);
    Webster Dep., ECF No. 55-18, at 104:9–17 (suggesting that rifles not banned under the Firearm
    Safety Act are equally effective in penetrating law enforcement armor as the assault rifles that
    are banned); see also Roberts Decl. ¶ 5 (“There is nothing ballistically special or different about
    a .223/5.56mm bullet whether fired from an AR-15 or some other rifle of the same caliber.”);
    22
    The plaintiffs also claim that the banned assault long guns and LCMs are in common use for hunting, which the
    Supreme Court has indicated may be a use protected by the Second Amendment. See Heller I, 
    554 U.S. at 599
    . The
    plaintiffs proffer no evidence, however, to suggest that the weapons at issue are used or even possessed for that
    purpose. Further, although the court recognizes the need to build proficiency with a firearm for the purposes of
    hunting or self-defense, there has been no indication from the Supreme Court that competitive marksmanship in
    itself is a purpose protected by the Second Amendment. See 
    id. at 626
     (noting the Second Amendment right is not
    one to “keep and carry any weapon whatsoever in any manner whatsoever and for whatever purpose” (emphasis
    added)).
    18
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 19 of 47
    Buford Boone Decl., ECF No. 55-13, ¶ 4 (“[T]he soft body armor commonly worn by law
    enforcement officers is rated only to stop handgun rounds. It is not rated to stop most center-fire
    rifle rounds.”).) The plaintiffs, therefore, maintain that the banned assault weapons and LCMs
    are commonly used for lawful purposes.
    According to the defendants, by contrast, assault weapons comprise a small portion of the
    current civilian gun stock in the United States. (See Lawrence Tribe Testimony, ECF No. 44-74,
    at 24 (estimating that approximately seven million assault weapons are owned in the United
    States today); see also Marylanders to Prevent Gun Violence Br., ECF No. 40, at 4, 6–7
    (estimating that the number of assault weapons in the United States is closer to the number of
    machineguns than the number of handguns).) Koper estimates that, at the time of the 1994
    federal ban, assault weapons comprised less than one percent of the civilian gun stock. (Koper
    Decl. ¶ 19.) Assuming that recent sales have increased the number of assault weapons in the
    current civilian market to nine million, such weapons would represent about three percent of the
    civilian gun stock. (See William J. Krouse, Cong. Research Serv., Gun Control Legislation, ECF
    No. 44-28, at 8 (estimating that, by 2009, the total number of firearms available to U.S. civilians
    was approximately 310 million).) The defendants also assert that the absolute number of assault
    weapons far exceeds the number of people who own them. In recent decades, gun ownership in
    the United States has become increasingly concentrated; fewer households own firearms, but
    those households owning guns own more of them. (See Webster Decl. ¶¶ 13–14; see also NSSF
    Rep., ECF No. 44-75, at 13 (indicating that the average owner of modern sporting rifles had 2.6
    such weapons in 2010 and 3.1 such weapons in 2013).)23 Using NSSF’s figure that the average
    23
    Although it is not entirely clear what weapon qualifies as a modern sporting rifle, it appears NSSF began using
    this term in an effort to rebrand assault weapons, and the plaintiffs use this term to refer to AR- and AK-platform
    rifles. (See Curcuruto Dep., ECF No. 44-44, at 79:14–80:21 (suggesting that he knows what a modern sporting rifle
    19
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 20 of 47
    assault weapons owner has 3.1 such weapons, this means less than 1% of Americans own an
    assault weapon. In Maryland specifically, from 1994 to 2012, there were a total of 604,051
    transfers of regulated firearms, of which only 46,577 were assault weapons. (See Brady Decl.,
    Ex. C.) Assuming again that the average assault weapons owner has 3.1 such weapons, this
    means approximately 15,000 Marylanders own 46,577 assault weapons. The defendants assert
    that, in light of Maryland’s approximately 4.5 million adult residents, the number of Marylanders
    owning assault weapons is well below 1%.24 See U.S. Census Bureau: State & County
    QuickFacts, Maryland (last revised July 8, 2014), available at
    http://quickfacts.census.gov/qfd/states/24000.html.
    The defendants further claim that assault weapons and LCMs25 are not commonly used
    for self-defense, and indeed the plaintiffs fail to identify a single incident in which a Marylander
    defended herself using an assault weapon. With the exception of one incident not relevant
    here,26 Maryland law enforcement officials are unaware of any Marylander using an assault
    weapon, or needing to fire more than ten rounds, to protect himself. (Johnson Decl. ¶¶ 30–31,
    39–40; Batts Decl. ¶¶ 29–31, 37; Stawinski Decl. ¶¶ 24–25, 34; Marcus Brown Decl., ECF No.
    44-2, ¶ 18; see also Webster Decl. ¶ 20 (stating that he is aware of no study or data suggesting
    that assault weapons features and LCMs are necessary for personal defense); Tribe Testimony at
    14 (explaining that “in the case of high-capacity magazines, significant market presence does not
    is when he sees it); see also 
    id.
     at 69:9–72:16, 92:6–9 (indicating that NSSF created the term “modern sporting
    rifles” to cover, inter alia, “semiautomatic AR- or AK-platform rifle[s] and the variances thereof”).)
    24
    The defendants recognize that, in 2013, the number of Marylanders owning assault weapons was likely higher due
    to the many last-minute sales leading up to the implementation of the Firearm Safety Act.
    25
    The defendants dispute that LCMs are “bearable arms” falling within the scope of the Second Amendment’s
    protection. See Heller, 
    554 U.S. at 582
     (“[T]he Second Amendment extends, prima facie, to all instruments that
    constitute bearable arms . . . .”). The court need not resolve this issue and will assume, although not decide, that
    they are bearable arms under the Second Amendment.
    26
    Anthony Batts, the Commissioner of the Baltimore Police Department, is aware of just one incident in which a
    civilian in Baltimore City fired more than ten rounds in a self-defense incident, but a number of the rounds were
    fired as the perpetrators were fleeing the scene. (Batts Decl. ¶ 31; see also Josselyn Dep., ECF No. 44-46, at 15:15–
    19:10.)
    20
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 21 of 47
    necessarily translate into heavy reliance by American gun owners on those magazines for self-
    defense”).) The defendants’ expert, Lucy Allen, confirms that it is rare for a self-defender to fire
    more than ten rounds. (Allen Decl., ECF No. 44-9, ¶ 8.) Upon analyzing the NRA Institute for
    Legislative Action’s reports on self-defense incidents occurring between January 2011 and
    December 2013, she determined that, on average, 2.1 bullets were fired. (Id. ¶¶ 11–12.) Put
    simply, the defendants argue that, although the plaintiffs may believe that particular assault
    weapons and LCMs are well-suited for self-defense, there is no evidence to support their claims.
    The defendants finally argue that the banned assault weapons and LCMs fall outside
    Second Amendment protection as dangerous and unusual arms. They assert that the banned
    firearms, which are substantially similar—and indeed, as discussed below, possibly more
    effective—in functioning, dangerousness, and killing capacity as their fully automatic
    counterparts, are military-style weapons designed for offensive use. (See Supica Dep., ECF No.
    44-41, at 75:7–77:8; Boone Dep., ECF No. 44-42, at 95:8–25; Curcuruto Dep., ECF No. 44-44,
    at 91:3–11; Rossi Dep., ECF No. 44-43, at 94:15–95:11; H.R. Rep. 103-489, ECF No. 44-23, at
    18–20; see also 2011 Bushmaster Product Catalogue, ECF No. 44-70, at 3 (advertising the
    Bushmaster ACR (adaptive combat rifle) as “the ultimate military combat weapons system” and
    “[b]uilt specifically for law enforcement and tactical markets”)); see also Staples v. United
    States, 
    511 U.S. 600
    , 602–03 & n.1 (1994) (identifying the AR-15 as “the civilian version of the
    military’s M–16 rifle” and explaining that, although the AR-15 is only semi-automatic, it
    nevertheless “requires no manual manipulation by the operator to place another round in the
    chamber after each round is fired”). Likewise, LCMs serve an obvious military function by
    allowing the shooter to fire many rounds without having to pause to reload. (See 2011 ATF
    Study, ECF No. 44-16, at 10 (reporting the working group’s determination that “magazines
    21
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 22 of 47
    capable of holding large amounts of ammunition, regardless of type, are particularly designed
    and most suitable for military and law enforcement applications”); see also 1998 ATF Study,
    ECF No. 44-15, at 38 (explaining that a firearm’s ability “to accept a detachable large capacity
    military magazine gives [it] the capability to expel large amounts of ammunition quickly,” which
    “serves a function in combat and crime, but serves no sporting purpose”).)
    This capacity, the defendants reason, can allow a criminal to cause mass casualties, while
    depriving victims and law enforcement of an opportunity to escape or overwhelm an assailant as
    he reloads his weapon. (See Gary Kleck Dep., ECF No. 44-51, at 139:11–25 (explaining that, in
    the mass shooting at an Aurora, Colorado movie theater, the assailant was able to fire 100 rounds
    without reloading); see also Newspaper Articles, ECF No. 44-40 (documenting situations in
    which bystanders or law enforcement officers were able to intervene as the assailant attempted to
    reload); Batts Decl. ¶ 49 (reasoning that, when a mass shooter must load ten 10-round magazines
    to fire 100 rounds, as opposed to a single 100-round drum, bystanders have about 6 to 9 more
    chances to escape and bystanders or law enforcement officers have about 6 to 9 more chances to
    intervene during a pause in firing).) Indeed, assault weapons and LCMs are disproportionately
    represented in mass shootings. (See Koper Decl. ¶ 25 (explaining that 21% of 62 mass shootings
    between 1982 and 2012 involved the use of an assault rifle, and that more than half of those
    incidents involved assault weapons, LCMs, or both); Allen Decl. ¶ 15 (indicating that, over the
    last three decades, LCMs were used in 85% of mass shootings where the magazine capacity was
    known, and that, in the past two years, LCMs were used in 5 of the 7 mass shootings with known
    magazine capacity); see also Webster Decl. ¶ 15). And the use of assault weapons and LCMs in
    mass shootings is correlated with more fatalities and more injuries than shootings in which they
    were not used. (See Koper Decl. ¶¶ 27, 37–43.) Beyond mass shootings, the defendants claim
    22
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 23 of 47
    that assault weapons and LCMs are also disproportionately represented in murders of law
    enforcement officers. (See id. ¶¶ 16, 22–23, 29, 35 (explaining that, before the federal assault
    weapons ban went into effect, assault weapons accounted for up to nine percent of murders of
    law enforcement officers, and that, in 1994, LCMs were involved in thirty-one to forty-one
    percent of murders of officers); Webster Decl. ¶ 18 (internal citations omitted) (“[A] study of
    murders of police officers while on duty in 1994 found that assault weapons were used in 16% of
    the murders and 31% to 41% of the police officers were murdered with a firearm with a[n] LCM.
    The Violence Policy Center examined data on law enforcement officers murdered in the line of
    duty from the FBI for 1998-2001 and found 19.4% (41 of 211) had been shot with an assault
    weapon.”).) In sum, the defendants claim that assault weapons and LCMs are not commonly
    used and, in any event, are not useful or commonly used for self-defense.
    Upon review of all the parties’ evidence, the court seriously doubts that the banned
    assault long guns are commonly possessed for lawful purposes, particularly self-defense in the
    home, which is at the core of the Second Amendment right, and is inclined to find the weapons
    fall outside Second Amendment protection as dangerous and unusual. First, the court is not
    persuaded that assault weapons are commonly possessed based on the absolute number of those
    weapons owned by the public. Even accepting that there are 8.2 million assault weapons in the
    civilian gun stock, as the plaintiffs claim, assault weapons represent no more than 3% of the
    current civilian gun stock, and ownership of those weapons is highly concentrated in less than
    1% of the U.S. population. The court is also not persuaded by the plaintiffs’ claims that assault
    weapons are used infrequently in mass shootings and murders of law enforcement officers. The
    available statistics indicate that assault weapons are used disproportionately to their ownership in
    23
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 24 of 47
    the general public and, furthermore, cause more injuries and more fatalities when they are used.27
    As for their claims that assault weapons are well-suited for self-defense, the plaintiffs proffer no
    evidence beyond their desire to possess assault weapons for self-defense in the home that they
    are in fact commonly used, or possessed, for that purpose.28 Finally, despite the plaintiffs’
    claims that they would like to use assault weapons for defensive purposes, assault weapons are
    military-style weapons designed for offensive use, and are equally, or possibly even more
    effective, in functioning and killing capacity as their fully automatic versions.29
    Nevertheless, the court need not resolve whether the banned assault weapons and LCMs
    are useful or commonly used for lawful purposes, see Woollard, 712 F.3d at 875–76 (making
    clear that courts need not decide the infringement issue to rule on Second Amendment claims),
    and will assume, although not decide, that the Firearm Safety Act places some burden on the
    Second Amendment right. See Heller II, 
    670 F.3d at
    1260–61.
    B. The Appropriate Level of Means-End Scrutiny
    Because the court assumes the Firearm Safety Act infringes on the Second Amendment,
    it must decide what level of means-ends scrutiny to apply to determine the law’s
    constitutionality.
    The Supreme Court held in Heller I that a heightened level of scrutiny applies to
    27
    In their papers and at the hearing on the parties’ motions, the plaintiffs claim assault weapons are not used
    disproportionately in crimes, pointing to, for example, the fact that law enforcement officers are more likely to be
    killed by motor vehicles or handguns. (See, e.g., Hr’g Tr., ECF No. 76, at 42:21–43:6.) The plaintiffs
    misunderstand the disproportionality to which the defendants are referring and which the court finds supports the
    legislature’s conclusion. It may be that police officers are killed more often by handguns than assault weapons, but
    the evidence also demonstrates assault weapons are used disproportionately to their ownership in the population.
    28
    Plaintiffs cite an NSSF survey of 5,070 “modern sporting rifle” owners in which “home defense” was the second
    most important reason responders gave for owning the guns, behind recreational target shooting, as evidence that
    assault weapons are commonly owned for self-defense. (Curcuruto Decl., Ex. B, at 33.) The survey question only
    asked how important home defense was for owning the weapon and provided an average rating between one and ten.
    The court is not persuaded that these data demonstrate assault weapons are commonly owned for self-defense.
    29
    The Supreme Court indicated in Heller I that M-16 rifles could be banned as dangerous and unusual. 
    554 U.S. at 627
    . Given that assault rifles like the AR-15 are essentially the functional equivalent of M-16s—and arguably more
    effective—the same reasoning would seem to apply here.
    24
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 25 of 47
    regulations found to burden the Second Amendment right, 
    554 U.S. at
    628 n.27, but did not
    further articulate whether and when strict or intermediate scrutiny applies. From the Court’s
    holding in Heller I, the Fourth Circuit has subsequently determined that whether strict or
    intermediate scrutiny applies requires the court to consider “the nature of the person’s Second
    Amendment interest, the extent to which those interests are burdened by government regulation,
    and the strength of the government’s justifications for the regulation.” United States v.
    Masciandaro, 
    638 F.3d 458
    , 470 (4th Cir. 2011).
    The Fourth Circuit has likened the analysis to that under the First Amendment, where
    content-based regulations must survive strict scrutiny, while time, place, and manner restrictions
    only must survive intermediate scrutiny. 
    Id.
     at 470–71; Chester, 
    628 F.3d at 682
    ; see also Heller
    II, 
    670 F.3d at 1262
    ; United States v. Marzzarella, 
    614 F.3d 85
    , 97–98 (3d Cir. 2010). Applying
    a similar framework to Second Amendment cases, the Fourth Circuit noted that “we assume that
    any law that would burden the ‘fundamental,’ core right of self-defense in the home by a law-
    abiding citizen would be subject to strict scrutiny.” Masciandaro, 
    638 F.3d at 470
    . On the other
    hand, “less severe burdens on the right, laws that merely regulate rather than restrict, and laws
    that do not implicate the central self-defense concern of the Second Amendment, may be more
    easily justified.”30 
    Id.
     (quoting Chester, 
    628 F.3d at 682
    ) (internal quotation marks omitted); see
    also Peruta, 742 F.3d at 1167-68 (reserving a higher standard of scrutiny for those laws that
    destroy the core right, but a lower standard for those that merely burden it); Kachalsky v. Cnty. of
    Westchester, 
    701 F.3d 81
    , 93–96 (2d Cir. 2012) (holding intermediate scrutiny is appropriate
    30
    The Fourth Circuit has applied intermediate scrutiny to laws regulating the ability to carry arms outside the home
    and to laws prohibiting misdemeanants from possessing a firearm. See, e.g., Woollard, 712 F.3d at 876 (addressing
    a requirement that an individual demonstrate a “good and substantial reason” for carrying a handgun in public before
    he can obtain a permit to do so); Masciandaro, 
    638 F.3d at 471
     (addressing a regulation barring the carrying of
    loaded weapons in a motor vehicle in a national park); Chester, 
    628 F.3d at 683
     (addressing a statute prohibiting
    those convicted of a misdemeanor crime involving domestic violence from possessing a firearm).
    25
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 26 of 47
    where a firearm regulation does not burden the core protection of self-defense in the home);
    Heller II, 
    670 F.3d at 1261
     (noting that the court determines the level of scrutiny “by assessing
    how severely the prohibitions burden the Second Amendment right”); Marzzarella, 
    614 F.3d at 97
     (finding intermediate scrutiny was appropriate for evaluating the prohibition of unmarked
    firearms because the law did not severely limit the possession of firearms and left a person free
    to possess any otherwise lawful firearm of his choosing).
    Applying that framework here, the court finds intermediate scrutiny is appropriate for
    assessing the constitutionality of Maryland’s ban because it does not seriously impact a person’s
    ability to defend himself in the home, the Second Amendment’s core protection. It does not ban
    the quintessential weapon—the handgun—used for self-defense in the home. Nor does it prevent
    an individual from keeping a suitable weapon for protection in the home. In fact, the plaintiffs
    can point to no instance where assault weapons or LCMs were used or useful in an instance of
    self-defense in Maryland.31 As already discussed, four law enforcement agents leading state and
    local law enforcement offices in Maryland could not identify a single instance in which an
    assault weapon or more than ten rounds of ammunition were used or were necessary to ward off
    an attacker. (Johnson Decl. ¶¶ 30–31, 39–40; Batts Decl. ¶¶ 29–31, 37; Stawinski Decl. ¶¶ 24–
    25, 34; Brown Decl. ¶ 18; see also Webster Decl. ¶ 20.) Therefore, although the bans remove a
    class of weapons that the plaintiffs desire to use for self-defense in the home, (see, e.g., Kolbe
    Decl. ¶ 8), there is no evidence demonstrating their removal will significantly impact the core
    protection of the Second Amendment. Accordingly, intermediate scrutiny applies. See Heller II,
    
    670 F.3d at
    1261–62 (applying intermediate scrutiny where the court found the prohibitions on
    31
    The plaintiffs include a letter in the record from a former Maryland State Trooper in which the Trooper recounts
    an instance where, while on duty, he fired twenty-one rounds at a criminal who had a hostage—completely
    emptying the magazines in his two firearms—and actually shot the criminal eight times. (Letter from Lawrence J.
    Nelson, ECF No. 55-34, at 1.) The letter provides no evidence as to whether it was necessary to dispense all twenty-
    one rounds.
    26
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 27 of 47
    assault rifles and LCMs did not “effectively disarm individuals or substantially affect their
    ability to defend themselves”); Colorado Outfitters Assoc. v. Hickenlooper, -- F. Supp. 2d --,
    
    2014 WL 3058518
    , at *14 (D. Colo. June 26, 2014) (finding intermediate scrutiny applied to a
    ban on LCMs with more than fifteen rounds because, although touching the core right to bear
    arms for defense of self and home, it did not severely limit a person’s ability to keep arms for
    that purpose); Fyock, 
    2014 WL 984162
    , at *6–7 (finding a ban on LCMs only warranted
    intermediate scrutiny because, although close to the core right of self-defense in the home, the
    law only created a minor burden on that right given the number of alternatives); San Francisco
    Veteran Police Officers Ass’n, 
    2014 WL 644395
    , at *4–5 (finding intermediate scrutiny applied
    to a ban on LCMs because the ban “merely burdens” but does not “destroy” the right to self-
    defense); Shew, 
    2014 WL 346859
    , at *7 (finding intermediate scrutiny appropriate because the
    challenged legislation “provides alternate access to similar firearms and does not categorically
    ban a universally recognized class of firearms”); NYSRPA, 
    2013 WL 6909955
    , at *12–13
    (finding intermediate scrutiny appropriate because “nearly universally” courts had applied
    intermediate scrutiny in the Second Amendment context and because application of strict
    scrutiny would be inconsistent with the Supreme Court’s holding that some regulations are
    presumptively valid).
    The plaintiffs raise two arguments as to why strict scrutiny should apply, but they are not
    persuasive. First, they contend that, any time a firearm is in common use and used for lawful
    purposes, a ban on ownership is per se unconstitutional. There is nothing in the relevant case
    law to support such a claim and, in fact, such a holding would be contrary to established Fourth
    Circuit precedent. See Masciandaro, 
    638 F.3d at 470
     (applying intermediate scrutiny to a
    regulation presumed to infringe on the Second Amendment’s protections). Further, Heller I does
    27
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 28 of 47
    not require such a holding. Although the Supreme Court found commonly used weapons to fall
    within the Second Amendment’s protection, it said nothing of when intermediate or strict
    scrutiny applies. See Heller I, 
    554 U.S. at 628-29
    ; see also Chester, 
    628 F.3d at 682
     (“We do not
    apply strict scrutiny whenever a law impinges upon a right specifically enumerated in the Bill of
    Rights.”).
    Second, the plaintiffs claim that strict scrutiny should apply any time a regulation touches
    the core right of self-defense in the home, regardless of the extent to which the regulation
    burdens it. To support their position, the plaintiffs point to the Fourth Circuit’s assumption in
    dicta in Masciandaro that “any law that would burden” the core right would be subject to strict
    scrutiny. 
    638 F.3d at 470
     (emphasis added). The plaintiffs, however, ignore the rest of the
    Fourth Circuit’s opinion. Immediately before the cited language, the Fourth Circuit recognized
    that not all burdens are treated the same under the Second Amendment and that it is only those
    that impose a “severe burden” on the core right that require “strong justification.” 
    Id.
     (quoting
    Chester, 
    628 F.3d at 682
    ). The court concludes, therefore, that Fourth Circuit precedent is in line
    with the holdings of other circuits: where the burden is not severe, even assuming a regulation
    touches the core right, intermediate scrutiny applies.
    C. Applying Intermediate Scrutiny
    To survive intermediate scrutiny, the government must demonstrate that the laws at issue
    are “reasonably adapted to a substantial government interest.” Woollard, 712 F.3d at 876
    (quoting Masciandaro, 
    638 F.3d at 471
    ) (internal quotation marks omitted); Chester, 
    628 F.3d at 683
     (holding the government must demonstrate that there is a “reasonable fit” between the law at
    issue and the government’s substantial interest). The Fourth Circuit has made clear that
    intermediate scrutiny “does not require that a regulation be the least intrusive means of achieving
    28
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 29 of 47
    the relevant government objective, or that there be no burden whatsoever on the individual right
    in question.” Masciandaro, 
    638 F.3d at 474
    . Nor does the fit have to be perfect. Woollard, 712
    F.3d at 878. Instead, Maryland’s interests only must be “substantially served” by the law. Id.
    Further, the Fourth Circuit in Woollard made clear that where the government has satisfied the
    requirements of the relevant level of scrutiny, the court would not question the government’s
    policy judgments in favor of other options. Id. at 881 (noting that the court “cannot substitute
    [its] views for the considered judgment of the General Assembly”). Thus, the court cannot find a
    law unconstitutional solely because the plaintiffs have offered arguably more effective
    alternatives for serving the government’s objective.32
    The Fourth Circuit has expressly found that the government has a substantial interest in
    providing for public safety and preventing crime, id. at 877; see also Masciandaro, 
    638 F.3d at 473
     (finding that the government has a substantial interest in providing for public safety in
    national parks), the interests the defendants advance here. In fact, the court has implied that
    protecting public safety may even be a compelling interest. Masciandaro, 
    638 F.3d at 473
    (noting that cases have described the government’s interest in public safety as “compelling” and
    citing cases). In any event, the plaintiffs admit that the government has a “compelling
    government interest” in ensuring public safety. (Pls.’ Mem., ECF No. 55-1, at 31.)
    Finding the government has a sufficient interest, the court must decide whether
    Maryland’s ban on assault weapons and LCMs substantially serves that interest. As a
    32
    To the extent the plaintiffs cite the Supreme Court’s recent opinion in McCullen v. Coakley, 
    134 S.Ct. 2518
    (2014), (see Pls.’ Corr., ECF No. 74), to claim the intermediate scrutiny standard is somehow more stringent than
    the standard as articulated by the Fourth Circuit, there is nothing in the Supreme Court’s opinion to suggest that the
    Court intended to alter the standard in any way. Further, although courts have recognized parallels between the First
    Amendment and the Second Amendment when determining which standard of scrutiny to apply, no court has ever
    held they are exactly the same such that the court’s analysis here is controlled by the First Amendment analysis
    regarding time, place, and manner restrictions. The Fourth Circuit has articulated how intermediate scrutiny is to be
    applied under the Second Amendment, see, e.g., Woollard, 712 F.3d at 878–89; Masciandaro, 
    638 F.3d at
    473–74,
    and this court is bound by its precedents.
    29
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 30 of 47
    preliminary matter, the plaintiffs contend that the court should look only to the evidence that was
    in front of the legislature when it enacted the law to determine whether the law passes
    intermediate scrutiny. Plaintiffs base their claim on the Supreme Court’s statement in Turner I
    that when applying intermediate scrutiny, a court must “assure that, in formulating its judgments,
    [the legislature] has drawn reasonable inferences based on substantial evidence.” 
    512 U.S. at 666
    . In the only case plaintiffs cite to support their interpretation of this language, the Third
    Circuit did not hold that the court could consider only evidence that was in front of the
    legislature. Instead, it found that what the legislature relied on was unclear and then decided that
    the state could point to other means of support, such as common sense, history, and studies.
    Drake v. Filko, 
    724 F.3d 426
    , 437–38 (3d Cir. 2013) (citing IMS Health, Inc. v. Ayotte, 
    550 F.3d 42
    , 55 (1st Cir. 2008)). Notably, and as the defendants point out, the Supreme Court in Turner I
    also stated that Congress did not have to develop a record as an administrative agency would and
    indicated that evidence outside the legislative record could be introduced in the litigation. 
    512 U.S. at
    666–67.
    The Fourth Circuit has held that “the Constitution does not mandate a specific method by
    which the government must satisfy its burden under heightened judicial scrutiny,” and that the
    government “may resort to a wide range of sources, such as legislative text and history, empirical
    evidence, case law, and common sense.” United States v. Carter, 
    669 F.3d 411
    , 418 (4th Cir.
    2012). In Woollard, for example, although citing several pieces of evidence that led to its
    finding that a reasonable fit existed between a “good and substantial reason” requirement for
    issuing handgun permits and the purpose of public safety, the court never mentioned or
    investigated whether the evidence was also in front of the legislature. 712 F.3d at 879–80; see
    also United States v. Chester, 
    847 F. Supp. 2d 902
    , 906–07 (S.D.W.V. 2012) (on remand from
    30
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 31 of 47
    the Fourth Circuit, considering evidence from non-legislative sources to find the government had
    satisfied its burden under intermediate scrutiny). Even where the Fourth Circuit has articulated
    the standard from Turner I, it has stated that the court could “look to evidence outside the
    legislative record in order to confirm the reasonableness of Congress’s predictions.” Satellite
    Broadcasting and Comm. Ass’n v. Fed. Commc’ns Comm’n, 
    275 F.3d 337
    , 357 (4th Cir. 2001)
    (citing Turner II, 
    520 U.S. at 196
    ).
    Turning to the record in this case, Maryland’s ban on assault long guns and LCMs
    survives intermediate scrutiny.33 The evidence demonstrates that assault weapons have several
    military-style features making them especially dangerous to law enforcement and civilians.
    (ATF, Importability of Certain Semiautomatic Rifles, ECF No. 44-14, at 6–7 (describing the
    military features of semi-automatic assault rifles); 1998 ATF Study at 1 (same).) The AR-15, for
    example, is essentially the same as the military’s M-16 rifle, with the exception that the AR-15 is
    semi-automatic instead of fully automatic. (See Johnson Decl. ¶ 36 (“The only difference
    between automatic firearms actually used by the military, such as the M16, and assault weapons
    covered by the ban, such as the AR-15, is that the M16 is fully automatic.”)); see also Staples,
    
    511 U.S. at 603
     (noting that the AR-15 is “the civilian version of the military’s M-16 rifle”).
    The difference in the rate of fire from a semi-automatic and fully automatic weapon, however,
    appears to be minimal. (See Brian Siebel Testimony, ECF No. 44-24, at 197 (noting that an
    assault rifle could empty a thirty-round magazine in two seconds on fully automatic mode and
    only five seconds on semi-automatic mode); Kleck Dep. at 151:10–15 (stating that an untrained
    person using a semi-automatic rifle can probably fire six rounds in a second); Johnson Decl. ¶ 36
    (“The rate of fire from [semi-automatic] weapons is limited only by the speed at which the
    33
    Every court that has addressed the issue has considered evidence very similar—and sometimes identical—to that
    presented by the parties here and found bans on assault weapons and LCMs to survive intermediate scrutiny. See,
    e.g., Heller II, 
    670 F.3d at
    1262–64; Shew, 
    2014 WL 346859
    , at *8–9; NYSRPA, 
    2013 WL 6909955
    , at *14–18.
    31
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 32 of 47
    shooter can pull the trigger.”)).
    Having the features of military weapons, assault weapons are designed to cause extensive
    damage and can fire many rounds in quick succession, from a greater distance and with greater
    accuracy than many other types of guns—including, in some respects, their automatic
    counterparts. (See U.S. Army’s M16/M4 Training Manual, ECF No. 44-25, at 7-9 (stating that
    “rapid semi-automatic fire is superior to automatic fire in all measures: shots per target, trigger
    pulls per hit, and time to hit”); Brown Decl. ¶ 12 (explaining that the banned weapons are
    “designed for the battlefield, for the soldier to be able to shoot a large number of rounds across a
    battlefield at a high rate of speed”); 1998 ATF Study at 1 (noting that semi-automatic rifles “had
    a military configuration that was designed for killing and disabling the enemy and that
    distinguished the rifles from traditional sporting rifles”); see also Johnson Decl. ¶¶ 22, 25–26,
    32–33; Batts Decl. ¶¶ 20, 33; Stawinski Decl. ¶ 44; Siebel Testimony at 197–98.) Further, as
    already discussed above, the evidence demonstrates that assault weapons are often used in mass
    shootings and cause more fatalities and injuries when used. (See, e.g., Koper Decl. ¶¶ 21–29.)
    The evidence also demonstrates that criminals using assault rifles pose a heightened risk
    to law enforcement. (See Batts Decl. ¶ 45 (indicating that the military features of assault
    weapons, such as flash suppressors and pistol grips, provide criminals with a “military-style
    advantage” in a firefight with law enforcement).) For example, rounds shot from such weapons
    have the capability—more so than rounds shot from many other types of guns—to penetrate the
    soft body armor worn by law enforcement officers, as well as many kinds of bullet-resistant glass
    used by law enforcement.34 (Johnson Decl. ¶ 45 (reasoning that assault weapons pose a particular
    34
    Plaintiffs claim the law enforcement officers’ observations cannot support this finding because they are not
    ballistics experts. Although they may not be ballistics experts, their anecdotal and experience-based testimony is
    appropriately considered here. The plaintiffs also claim that assault weapons are not unique in their penetration
    capabilities. As discussed more fully below, however, that some other firearms also have increased penetration
    32
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 33 of 47
    threat to law enforcement officers because their rounds easily penetrate soft body armor);
    Stawinski Decl. ¶¶ 30–32 (offering personal observations of bullets from assault weapons
    piercing soft body armor and bullet-resistant glass where bullets from handguns and other
    firearms did not); see also Brown Decl. ¶ 23.) Further, assault weapons allow criminals to
    engage law enforcement officers with greater firepower, (Johnson Decl., Ex. A, at 2 (reasoning
    that assault weapons allow criminals to “up the ante with firepower in excess of what police
    officers typically use”); Johnson Decl., Ex. B, at 2 (“Assault weapons are routinely the weapons
    of choice for gang members and drug dealers . . . and are all too often used against police
    officers.”)), and they have been used to murder law enforcement officers in a rate
    disproportionate to their presence in civilian society, (see Violence Policy Ctr., “Officer Down”
    Assault Weapons and the War on Law Enforcement, ECF No. 44-56, at 5 (citing FBI data
    demonstrating that 19.4% of law enforcement officers killed in the line of duty were killed by
    assault weapons between 1998 and 2001); see also Koper Decl. ¶¶ 16, 22–23, 29, 35; Webster
    Decl. ¶¶ 15, 18.) Finally, several law enforcement officers offered affidavit statements regarding
    their experience with criminals obtaining assault weapons through straw purchases from
    authorized retailers, on the secondary market from legal owners, or through theft from legal
    owners, (e.g., Johnson Decl. ¶ 48; Batts Decl. ¶ 48); see also Abramski v. United States, 
    134 S. Ct. 2259
    , 2267–68, 2267 n.7 (2014) (describing a typical straw purchase in which a felon or
    other person barred from gun ownership purchases a gun through an intermediary and citing a
    Department of the Treasury report from 2000 that, in several prior years, almost half of all ATF
    firearm trafficking investigations involved straw purchases), suggesting that limiting the
    availability of the firearms generally will limit their availability to criminals.
    abilities does not undermine the legislature’s conclusion that banning assault weapons would protect public safety
    and decrease the effects of violent firearm-related crime.
    33
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 34 of 47
    Assault weapons pose a heightened risk to civilians as well. For civilians in their homes,
    the penetrating capabilities of bullets fired from assault weapons pose a higher risk than that
    posed by other firearms. They can penetrate walls and other home structures and remain more
    effective than penetrating bullets fired from other guns, endangering those in neighboring rooms,
    apartments, or even other homes. (Brady Ctr. to Prevent Gun Violence, Assault Weapons “Mass
    Produced Mayhem”, ECF No. 44-58, at 16 (citing a statement by Jim Pasco, executive director
    of the Fraternal Order of Police, that he would not be surprised if a bullet fired from an AK-47
    went through six walls of conventional drywall in a home); see also Stawinski Decl. ¶ 33.)
    Further, with the military-style features of assault weapons, they are made even more dangerous
    because civilians often do not receive the same kind of training that law enforcement officers
    receive. (Vince Decl. ¶ 21.)
    The evidence demonstrates, therefore, that the ban on assault weapons is likely to further
    the government’s interest in protecting public safety by removing weapons that cause greater
    harm when used—to both civilians and police—and create greater obstacles for law enforcement
    in stopping and detaining criminals who are using them.
    The record also shows a reasonable fit between banning LCMs and the government’s
    substantial interest in protecting public safety and reducing the negative effects of firearm
    crimes. First, more rounds available equates with more shots fired and more individuals injured.
    (E.g., Brown Decl. ¶ 24; Johnson Decl. ¶ 44; see also Koper Decl. ¶ 15 (noting that the “best
    available evidence” indicates that attacks with guns with LCMs “generally result in more shots
    fired, persons wounded, and wounds per victim”).) In addition, the evidence demonstrates that
    over the last three decades LCMs of more than ten rounds were used in thirty-four out of forty
    34
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 35 of 47
    mass shootings35 in which the magazine capacity was known, and that the average number of
    shots fired, in the twenty-seven shootings for which the number was available, was seventy-five.
    (Allen Decl. ¶¶ 15–16.) They are also disproportionately used in the killing of law enforcement
    officers. (Koper Decl. ¶ 35 (noting that in 1994, LCMs were estimated to have been used in
    thirty-one to forty-one percent of gun murders of police).) There is also evidence that LCMs
    contribute to more fatalities per incident than in non-LCM cases. (Id. ¶¶ 38–42.) Further, the
    evidence demonstrates that the break in time when a shooter must reload because he has spent a
    magazine is critical to disabling someone engaged in a violent, offensive attack or to allow
    potential victims to escape.36 (See Johnson Decl. ¶¶ 54–56; Stawinski Decl. ¶ 40; see also
    Newspaper Articles, ECF No. 44-40 (citing several examples where a shooter was disabled while
    attempting to reload his firearm).)
    With respect to civilians, untrained civilians using LCMs tend to fire more rounds than
    necessary, thus endangering more bystanders. (Johnson Decl. ¶ 38; Stawinski Decl. ¶ 35; see
    also Batts Decl. ¶ 42 (“The risk of indiscriminate firing from untrained or undertrained
    individuals with access to large numbers of highly-lethal rounds, especially combined with the
    improbability that such rounds will actually be necessary to end any particular attack, is an
    additional and, in my view, unacceptable risk to public safety . . . .”); Josselyn Dep. at 74:7–9
    (“It’s not uncommon to have the police arrive on a scene and see someone there still pulling the
    trigger, even though the gun is long empty . . . .”)); see also Heller II, 
    670 F.3d at
    1263–64
    (finding an aggravated risk from “the tendency . . . for defenders to keep firing until all bullets
    have been expended” (quoting Siebel Testimony)). The court thus finds a reasonable fit between
    35
    For the purpose of these figures, mass shootings were those in which four or more people were killed and that did
    not include armed robbery or gang violence. (Allen Decl. ¶¶ 13–14.)
    36
    The plaintiffs state in their brief that a “shooter intent on firing as many rounds as possible can fire thirty rounds
    using three ten-round magazines and reloading equally as fast as a shooter firing deliberately can fire thirty rounds
    from a thirty-round magazine.” (Pls.’ Mem. at 77.) They point to no support in the record for such a claim.
    35
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 36 of 47
    the ban on LCMs and the government’s interest in public safety.
    The plaintiffs make several claims as to why the assault weapons ban does not further the
    government’s substantial interests. Some of their arguments rely, however, on a misapplication
    of the intermediate scrutiny standard and are therefore not persuasive. For example, the
    plaintiffs claim there are several other types of guns which are not banned that can pierce soft
    body armor and walls as well. This argument ignores, however, that the fit between a regulation
    and the government’s purpose need not be perfect. See Woollard, 712 F.3d at 877. The law at
    issue here does not have to eliminate all guns that have the ability to pierce soft body armor. The
    court cannot find the ban unconstitutional simply because it does not by itself solve an entire
    problem.37 See id. at 881–82. Instead, the evidence demonstrates that the banned weapons pose
    a threat to law enforcement and public safety because of a combination of features of which the
    ability to penetrate soft body armor is just one. (See Webster Supp. Decl., ECF No. 62-6, ¶ 6.)
    Once finding that the ban will sufficiently further the government’s substantial interests in
    protecting public safety and preventing crime—including murders of police officers—to pass
    intermediate scrutiny, the court cannot question the legislature’s judgment that the Firearm
    Safety Act was the appropriate balance of various interests when compared to other possible
    regulations.
    The remainder of the plaintiffs’ arguments rely on mischaracterizations of Koper’s expert
    opinions and reports, as discussed earlier in this opinion. Plaintiffs place particular emphasis on
    Koper’s findings regarding the federal assault weapons ban. The fact that some effects of the
    federal ban were hard to measure, however, or the fact that the ban was not entirely effective in
    eliminating all crime involving assault weapons, does not undermine Koper’s conclusion that
    37
    For similar reasons, the plaintiffs’ claim that there is no reasonable fit because the evidence does not demonstrate
    all mass shootings would be eliminated is not persuasive.
    36
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 37 of 47
    Maryland’s ban on assault weapons and LCMs is likely to reduce the number and lethality of
    gunshot victimizations, and reduce the use of assault weapons and LCMs in crimes. (Koper
    Decl. ¶¶ 77–86.) First, Koper’s expert opinion is based on more than the effects of the federal
    assault weapons ban. Second, as Koper points out, the federal assault weapons ban and the
    Maryland Firearm Safety Act are different, with Maryland’s law closing some of the loopholes
    that may have made the federal ban less effective. (Id. ¶¶ 79–81.) The plaintiffs do not appear
    to dispute this fact. Nor do they appear to claim that the differences have no impact on the bans’
    relative effectiveness. Finally, the court emphasizes again that to pass intermediate scrutiny the
    law need not be the best solution for furthering the government’s interest; it must only
    substantially further it. See Woollard, 712 F.3d at 877.
    In sum, the defendants have met their burden to demonstrate a reasonable fit between the
    Firearm Safety Act and the government’s substantial interests in protecting public safety and
    reducing the negative effects of firearm-related crime. Accordingly, the Act does not violate the
    Second Amendment.
    IV.      Equal Protection
    The plaintiffs argue that the Firearm Safety Act violates the Equal Protection Clause of
    the Fourteenth Amendment by treating retired law enforcement officers differently than other
    individuals. The Equal Protection Clause guarantees that “[n]o State shall . . . deny to any
    person within its jurisdiction the equal protection of the laws.” U.S. Const. amend. XIV, § 1.
    Accordingly, “all persons similarly situated should be treated alike.” City of Cleburne, Tex. v.
    Cleburne Living Ctr., 
    473 U.S. 432
    , 439 (1985); see also Morrison v. Garraghty, 
    239 F.3d 648
    ,
    653–54 (4th Cir. 2001) (citation and internal quotation marks omitted) (stating that the Equal
    Protection Clause “keeps governmental decisionmakers from treating differently persons who are
    37
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 38 of 47
    in all relevant respects alike”). Nevertheless, when legislation is challenged on equal protection
    grounds, “[t]he general rule is that legislation is presumed to be valid and will be sustained if the
    classification drawn by the statute is rationally related to a legitimate state interest.”38 City of
    Cleburne, 
    473 U.S. at 440
    .
    This standard for considering equal protection challenges affords “the States a wide scope
    of discretion in enacting laws which affect some groups of citizens differently than others.”
    McGowan v. State of Md., 
    366 U.S. 420
    , 425 (1961). As further explained by the Supreme
    Court:
    The constitutional safeguard is offended only if the classification rests on grounds
    wholly irrelevant to the achievement of the State’s objective. State legislatures
    are presumed to have acted within their constitutional power despite the fact that,
    in practice, their laws result in some inequality. A statutory discrimination will
    not be set aside if any state of facts reasonably may be conceived to justify it.
    
    Id.
     at 425–26. Accordingly, in general, when considering an equal protection challenge to
    legislation, the court should first determine whether the government is treating similarly situated
    individuals differently, and then decide whether there is a rational basis for the differential
    treatment.
    The court agrees with the defendants that retired law enforcement officers are differently
    situated by virtue of their experiences ensuring public safety and their extensive training on the
    use of firearms. See Shew, 
    2014 WL 346859
    , at *9–11 (emphasis added) (rejecting an equal
    protection challenge to Connecticut legislation allowing on- and off-duty law enforcement
    officers to possess assault weapons and LCMs because “[t]he charge of protecting the public,
    and the training that accompanies that charge, is what differentiates the exempted personnel
    38
    “The general rule gives way,” for example, “when a statute classifies by race, alienage, or national origin.” City
    of Cleburne, 
    473 U.S. at 440
    . In that situation, the court applies “strict scrutiny,” and upholds the statute only if it is
    narrowly tailored to serve a compelling state interest. See Morrison, 
    239 F.3d at 654
    . Neither party argues,
    however, that the court should apply a heightened level of scrutiny in considering the plaintiffs’ equal protection
    challenge.
    38
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 39 of 47
    from the rest of the population”); see also Williams v. Puerto Rico, 
    910 F. Supp. 2d 386
    , 399–
    400 (D.P.R. 2012) (deciding that Puerto Rico’s Weapons Act of 2000, which allowed certain
    former and current government officials to possess and carry firearms but prohibited other
    citizens from doing so, passed the rational basis test).39
    In Maryland, law enforcement officers who wish to carry firearms must successfully
    complete the applicable firearms classroom instruction, training, and qualification. See COMAR
    12.04.02.03A; see, e.g., COMAR 12.04.02.06 (requirements applicable to long guns). They
    must then submit to firearms training every year thereafter. See COMAR 12.04.02.08A. If the
    officers do not submit to the required annual training, their firearms are seized until the training
    is completed. See COMAR 12.04.02.08E. In addition to receiving extensive training on the use
    of firearms generally, law enforcement officers must receive further specialized training to use
    assault weapons. They are taught how and when assault weapons may be used, as well as
    techniques to minimize the risk of harm to innocent civilians. (See Batts Decl. ¶ 27; see also
    Johnson Decl. ¶¶ 18–22.) Even after they have received this training, they must undergo
    periodic requalification to continue carrying assault weapons in the line of duty. (See Batts Decl.
    ¶ 27; Johnson Decl. ¶ 20–21.) Retired law enforcement officers have also received training on
    the use of LCMs; in particular, they have been taught how to assess each shot for effectiveness
    and how to evaluate the circumstances before continuing to fire additional rounds. (See Johnson
    39
    The plaintiffs rely on Silveira v. Lockyer, 
    312 F.3d 1052
     (9th Cir. 2002), abrogated on other grounds by District
    of Columbia v. Heller (Heller I), 
    554 U.S. 570
     (2008), to argue that the Firearm Safety Act violates equal protection,
    but the Ninth Circuit’s analysis is flawed. In Silveira, the Ninth Circuit assessed the constitutionality of a California
    law, which imposed “a ban on the possession of assault weapons by private individuals” but made an exception
    “allowing the possession of assault weapons by retired peace officers who acquire them from their employers at the
    time of their retirement.” Id. at 1059, 1089–92. The Ninth Circuit concluded that the “retired officer exception”
    lacked a rational basis, reasoning that “[t]he exception does not require that the transfer be for law enforcement
    purposes, and the possession and use of the weapons is not so limited.” Id. at 1089–90. Although the Silveira court
    acknowledged that it must first determine whether a state action results in differential treatment of similarly situated
    persons, it did not analyze whether the California law resulted in such an outcome. See id. at 1088–92. It appears
    the court simply assumed that retired peace officers and private individuals were similarly situated, and went
    directly to whether the California law had a rational basis. Accordingly, to the extent the plaintiffs rely on Silveira,
    it is unpersuasive.
    39
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 40 of 47
    Decl. ¶ 27.) Finally, they have received judgment training on the use of deadly force and how to
    safely handle and store firearms, including in their homes. See COMAR 12.04.02.10C–D.
    The plaintiffs attempt to argue that retired law enforcement officers are similarly situated
    to the general public because they may not have had training specific to the banned firearms or
    magazines. In making this argument, however, the plaintiffs overlook the broader point that
    retired law enforcement officers are not similarly situated to other persons with respect to
    firearms training and experience generally. In any event, one of the exceptions in the Firearm
    Safety Act allows the transfer of an assault weapon from a law enforcement agency to a retired
    law enforcement officer if it was used by the officer in the course of duty before retirement.
    Thus, any officer qualifying for this exception must have had extensive training on that particular
    assault weapon. Moreover, in at least the MSP, Baltimore County Police Department, Baltimore
    Police Department, and Prince George’s County Police Department, standard service weapons
    issued to law enforcement personnel come with LCMs. (See Brown Decl. ¶ 32 (MSP standard
    service weapons come with fifteen-round magazines); Johnson Decl. ¶ 23 (Baltimore County
    Police Department standard service weapons come with fourteen-round magazines); Batts Decl.
    ¶ 25 (Baltimore Police Department standard service weapons come with fifteen-round
    magazines); Stawinksi Decl. ¶ 11 (Prince George’s County Police Department standard service
    weapons come with fifteen-round magazines).) Accordingly, officers retiring from those
    departments, at least in the recent past, have had training with respect to LCMs.
    Based on all the training and instruction retired law enforcement officers have received,
    they are better equipped than the general public to handle and store firearms safely and to
    prevent them from getting into the wrong hands. The court cannot conclude that the State of
    Maryland is treating differently persons who are in all relevant respects alike, and the plaintiffs’
    40
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 41 of 47
    equal protection challenge must fail.
    V.      Void for Vagueness
    Finally, the plaintiffs argue that the Firearm Safety Act is void because the list of banned
    assault weapons is unconstitutionally vague. In particular, they assert that the Act fails to inform
    a reasonable person as to what constitutes a “copy” of the banned assault long guns. See CR § 4-
    301(d) (emphasis added) (stating that an “[a]ssault weapon” is “(1) an assault long gun; (2) an
    assault pistol; or (3) a copycat weapon”); see also PS § 5-101(r)(2) (emphasis added) (stating
    that a “[r]egulated firearm” means “a firearm that is any of the following specific assault
    weapons or their copies, regardless of which company produced and manufactured that assault
    weapon”).40
    “It is a basic principle of due process that an enactment is void for vagueness if its
    prohibitions are not clearly defined.” Grayned v. City of Rockford, 
    408 U.S. 104
    , 108 (1972). A
    law may be impermissibly vague because it (1) fails to provide sufficient notice so that ordinary
    people understand what conduct it prohibits or (2) authorizes or even encourages arbitrary or
    discriminatory enforcement. City of Chicago v. Morales, 
    527 U.S. 41
    , 56 (1999) (plurality
    opinion); see also Fed. Commc’ns Comm’n v. Fox Television Stations, Inc., 
    132 S. Ct. 2307
    ,
    2317 (2012). “As the Supreme Court has noted, ‘perhaps the most meaningful aspect of the
    vagueness doctrine is not actual notice, but the other principal element of the doctrine—the
    requirement that a legislature establish minimal guidelines to govern law enforcement.’” United
    States v. Lanning, 
    723 F.3d 476
    , 482 (4th Cir. 2013) (quoting Smith v. Goguen, 
    415 U.S. 566
    ,
    40
    The defendants argue that the plaintiffs may not bring a facial vagueness challenge to the Firearm Safety Act, as it
    in no way implicates the First Amendment. While the Fourth Circuit has stated that a facial vagueness challenge to
    a criminal statute is allowed only when the statute implicates First Amendment rights, see United States v. Klecker,
    
    348 F.3d 69
    , 71 (4th Cir. 2003), it has nevertheless considered such challenges to non-First Amendment criminal
    statutes, see, e.g., Martin v. Lloyd, 
    700 F.3d 132
    , 135–37 (4th Cir. 2012). The court need not decide whether a facial
    vagueness challenge is available in this case because the Firearm Safety Act is not impermissibly vague.
    41
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 42 of 47
    574 (1974)).
    In considering a facial vagueness challenge, the court must “first determine whether the
    enactment implicates a substantial amount of constitutionally protected conduct.” Martin v.
    Lloyd, 
    700 F.3d 132
    , 135 (4th Cir. 2012). If the enactment does not, “then the challenge should
    only succeed if the law is impermissibly vague in all of its applications.” 
    Id.
     (citation and
    internal quotation marks omitted); see also United States v. Comstock, 
    627 F.3d 513
    , 518 (4th
    Cir. 2010) (citation and internal quotation marks omitted) (indicating that “a facial challenge
    cannot succeed if a statute has a plainly legitimate sweep”). Where a statute imposes criminal
    penalties, however, “the standard of certainty is higher and the statute can be invalidated on its
    face even where it could conceivably have . . . some valid application.” Martin, 700 F.3d at 135
    (citation and internal quotation marks omitted); see also Village of Hoffman Estates v. Flipside,
    Hoffman Estates, Inc., 
    455 U.S. 489
    , 498–99 (1982) (“The Court has also expressed greater
    tolerance of enactments with civil rather than criminal penalties because the consequences of
    imprecision are qualitatively less severe.”).
    Nevertheless, the Fourth Circuit has made clear that a statute is not impermissibly vague
    simply because it does not “spell out every possible factual scenario with celestial precision.”
    United States v. Hager, 
    721 F.3d 167
    , 183 (4th Cir. 2013) (citation and internal quotation marks
    omitted); see also, e.g., Richmond Boro Gun Club, Inc. v. City of New York, 
    896 F. Supp. 276
    ,
    289–90 (E.D.N.Y. 1995) (rejecting a facial vagueness challenge to a New York City law’s
    definition of an “assault weapon” because citizens had notice of the “core” group of banned
    weapons), aff’d, 
    97 F.3d 681
     (2d Cir. 1996). Rather, “[a] statute must be construed, if fairly
    possible, so as to avoid not only the conclusion that it is unconstitutional, but also grave doubts
    upon that score.” Hager, 721 F.3d at 183 (citation and internal quotation marks omitted).
    42
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 43 of 47
    Turning to the present case, the court notes that the term “copies” is not new to Maryland
    firearms law. In NYSRPA, the court considered how long the language at issue had existed in
    rejecting a vagueness challenge to New York’s ban on “any magazine that ‘can be readily
    restored or converted to accept’ more than 10 rounds of ammunition.” 
    2013 WL 6909955
    , at
    *22–23 (citation omitted) (emphasis added). Noting that the “readily” language had been used in
    federal law since 1994, and was adopted by New York in 2000, the court found no evidence of
    any confusion in the years since. Id. at *22. Similarly, here, Maryland firearms law has
    regulated certain assault weapons and their copies for over two decades. See 1994 Laws of Md.,
    Ch. 456. Yet, the plaintiffs have not identified any arrest or conviction resulting from a
    misunderstanding of the term “copies,” nor have they identified any acquittal based on the
    alleged vagueness of this word. The court cannot conclude that the term “copies” is
    unconstitutionally vague when there has not been a single arrest, conviction, or acquittal based
    on a misunderstanding in more than twenty years.
    Moreover, the plaintiffs fail to show the Firearm Safety Act lacks an identifiable “core”
    of prohibited conduct, even under the stricter standard for criminal statutes. The Act bans certain
    firearms listed by make and model, as well as their copies. See CR § 4-301(d); PS § 5-101(r)(2).
    Although the Act does not list all prohibited weapons—indeed it would be impossible to do so—
    the court cannot conclude the term “copies” is vague when read together with the list of banned
    firearms. See Shew, 
    2014 WL 346859
    , at *13–14 (rejecting a facial vagueness challenge to a
    Connecticut gun control statute that listed numerous banned firearm models and their “copies or
    duplicates”); Coal. of New Jersey Sportsmen, Inc. v. Whitman, 
    44 F. Supp. 2d 666
    , 679–80
    (D.N.J. 1999) (rejecting a vagueness challenge to a New Jersey gun control statute that included
    a ban on certain firearms listed by make and model as well as any firearms “substantially
    43
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 44 of 47
    identical” to the listed firearms); Wilson v. Cnty. of Cook, 
    968 N.E.2d 641
    , 652 (Ill. 2012)
    (determining that the phrase “copies or duplicates,” used in a Cook County ordinance banning
    particular models of assault weapons, was not vague when read together with the list of banned
    weapons); see also Benjamin v. Bailey, 
    662 A.2d 1226
    , 1241–42 (Conn. 1995) (deciding that use
    of the word “type” to capture like weapons—for example, the “AK-47 type”—did not render the
    statute facially vague).41
    The term “copies” has been further clarified through a formal opinion of the Attorney
    General of Maryland and a Firearms Bulletin from MSP, the state entity primarily charged with
    enforcing the firearms law. See Whitman, 
    44 F. Supp. 2d at 680
     (“A court should consider
    limiting constructions of the law offered by enforcement agencies.”); see also Village of Hoffman
    Estates, 
    455 U.S. at 504
     (indicating that a jurisdiction may “adopt administrative regulations that
    will sufficiently narrow potentially vague or arbitrary interpretations of [an] ordinance”).
    According to the Attorney General, “[c]osmetic similarity to an enumerated assault weapon
    alone would not bring a weapon within the regulated firearms law;” rather, “to come within the
    definition of ‘regulated firearm,’ a copy of a designated assault weapon must be similar in its
    internal components and function to the designated weapon.” 95 Op. Att’y Gen. Md. 101, 101
    (2010). Relying on this opinion, MSP issued its bulletin explaining that it considers a firearm
    that is cosmetically similar to one of the enumerated assault weapons to be a copy only if it also
    possesses “completely interchangeable internal components necessary for the full operation and
    41
    The plaintiffs attempt to rely on Springfield Armory, Inc. v. City of Columbus, 
    29 F.3d 250
     (6th Cir. 1994), but in
    that case, the court took issue with language not included in the Maryland Firearm Safety Act. The ordinance at
    issue in Springfield banned “slight modifications or enhancements” of specific models of assault weapons. 
    Id. at 252
    . As explained by the Sixth Circuit, an ordinary consumer cannot be expected to know which changes are
    “slight,” nor can he be expected to know “the developmental history of a particular weapon.” 
    Id. at 253
    . This
    reasoning is not applicable to the plaintiffs’ claims because the Firearm Safety Act does not require a citizen to be
    intimately familiar with the inner workings of any firearm. As explained below, consumers may consult with
    dealers and manufacturers to determine whether a particular weapon qualifies as a copy, and MSP is available to
    respond to their remaining inquiries.
    44
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 45 of 47
    function of any one of the specifically enumerated assault weapons.” (MSP Firearms Bulletin
    #10-2, ECF No. 55-43; see also Brady Decl. ¶ 10.) Thus, in enforcing the Firearm Safety Act,
    MSP is limited by its published guidance, which has been distributed to Maryland firearms
    dealers and is available to the public. (Brady Decl. ¶ 7.)
    Even the plaintiffs’ own statements confirm that there is an identifiable core of prohibited
    conduct. For example, Wink’s admits that a “substantial number” of the long guns it sells are
    now classified as assault weapons. (Carol Wink Decl., ECF No. 44-63, ¶ 4; see also Stephen
    Schneider Decl., ECF No. 44-62, ¶ 6 (admitting that regulated long guns classified now as
    assault weapons represent a “substantial number of all long guns sold by MLFDA’s individual
    members, including Atlantic Guns”).) Kolbe likewise indicates that he would like to purchase an
    AR-15, but that he knows he cannot do so under the Act. (Kolbe Dep., ECF No. 44-55, at
    57:19–58:9.) In light of the plaintiffs’ demonstrated understanding of the firearms prohibited by
    the Firearms Safety Act, the court cannot conclude that the Act fails to provide sufficient notice
    of banned conduct.42
    As for the plaintiffs’ claims that the Firearm Safety Act encourages arbitrary
    enforcement, they do not offer any facts to suggest that MSP has engaged or will engage in
    arbitrary enforcement. “When the terms of a regulation are clear and not subject to attack for
    vagueness, the plaintiff bears a high burden to show that the standards used by officials enforcing
    42
    According to the plaintiffs, the Act is vague with respect to its application to the “Colt AR-15 Sporter H-BAR
    rifle.” See PS § 5-101(r)(2)(xv) (emphasis added) (banning “Colt AR-15, CAR-15, and all imitations except Colt
    AR-15 Sporter H-BAR rifle”). They claim that they cannot figure out if a given rifle is permitted as a copy of a Colt
    AR-15 Sporter H-BAR rifle, or is banned as a copy of a Colt AR-15. As explained by the defendants, however,
    MSP relies on a “manufacturer’s designation of a firearm as an H-BAR or heavy-barreled version of an AR-15 to
    determine whether it is exempt from the ban as a copy of a Colt AR-15 Sporter H-BAR.” (Brady Decl. ¶ 17.) The
    plaintiffs simply need to inquire as to the manufacturer’s designation to determine whether a particular firearm
    qualifies for the exception in § 5-101(r)(2)(xv). The plaintiffs also claim that the Act is vague because LWRC
    International, LLC, a Maryland-based firearms manufacturer, does not know whether the AR-style rifles it
    manufactures are banned. But, according to LWRC, MSP orally advised that the rifles it manufactures are exempt
    from the assault weapons ban. (See John Brown Decl., ECF No. 69-9, ¶¶ 3–6.) To the extent LWRC is still
    uncertain as to the status of particular AR-style rifles, the court concludes that it nevertheless has notice of the
    “core” group of banned weapons. See Richmond Boro Gun Club, Inc., 
    896 F. Supp. at 289
    .
    45
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 46 of 47
    the statute nevertheless give rise to a vagueness challenge.” Wag More Dogs, Ltd. Liability
    Corp. v. Cozart, 
    680 F.3d 359
    , 372 (4th Cir. 2012). As stated above, the plaintiffs have not
    pointed to a single arrest or prosecution based on a misunderstanding of the “copies” language,
    nor have they indicated that an arrest or prosecution has been threatened. MSP has published its
    standards for determining whether a firearm constitutes a copy and, to the extent consumers or
    dealers still have questions about specific firearms, it is available to respond to their inquiries.43
    (See MSP Firearms Search, ECF No. 74-3 (providing a list of questions to answer to determine
    whether a weapon is banned as a copy of an assault long gun and offering a list of firearms that
    have been reviewed by MSP and determined to be copies); MSP Firearm Review Form, ECF No.
    74-4 (allowing a consumer to request MSP review of a particular firearm after contacting a
    firearms dealer, the firearm’s manufacturer, or an attorney); see also Brady Decl. ¶¶ 12–13;
    Schneider Dep., ECF No. 44-45, at 22:17–23:21; Robert Warnick Dep., ECF No. 44-49, at
    49:11–19; Wink Dep., ECF No. 44-53, at 27:9–28:9.) In sum, the court rejects the plaintiffs’
    vagueness challenge to the Firearm Safety Act.
    43
    The plaintiffs argue that MSP’s change in interpretation as to certain firearms—in particular, the Saiga 12
    shotgun, .22 caliber replicas of AR-15s, and the Bushmaster H-BAR—means the term “copies” is unconstitutionally
    vague. But MSP’s change in interpretation with respect to the Saiga 12 shotgun and .22 caliber replicas of AR-15s
    resulted from the Attorney General’s opinion, which in fact narrowed the interpretation of copies and thereby
    decreased the number of possible prosecutions. (Brady Supp. Decl., ECF No. 62-5, ¶¶ 2–5.) In any event, “[a]n
    agency is allowed to change its mind, so long as its new interpretation is reasonable.” United States v. Deaton, 
    332 F.3d 698
    , 711 (4th Cir. 2003). As for MSP’s changed interpretation regarding the status of the Bushmaster H-BAR,
    Brady explains that the change is the product of statutory interpretation based on a unique provision of the law
    applying specifically to Bushmaster semi-automatic rifles. (See Brady Decl. ¶¶ 18–20.) The court agrees with the
    defendants that this unique issue, limited to this specific firearm and based on a question of statutory interpretation,
    does not warrant a facial challenge to the entire Firearm Safety Act.
    46
    Case 1:13-cv-02841-CCB Document 81 Filed 08/22/14 Page 47 of 47
    CONCLUSION
    In summary, the Firearm Safety Act of 2013, which represents the considered judgment
    of this State’s legislature and its governor, seeks to address a serious risk of harm to law
    enforcement officers and the public from the greater power to injure and kill presented by assault
    weapons and large capacity magazines. The Act substantially serves the government’s interest in
    protecting public safety, and it does so without significantly burdening what the Supreme Court
    has now explained is the core Second Amendment right of “law-abiding, responsible citizens to
    use arms in defense of hearth and home.” Accordingly, the law is constitutional and will be
    upheld.
    A separate order follows.
    August 22, 2014                                               ________/S/___________________
    Date                                                          Catherine C. Blake
    United States District Judge
    47
    

Document Info

Docket Number: 8:13-po-02841

Citation Numbers: 42 F. Supp. 3d 768

Judges: Catherine C. Blake

Filed Date: 8/22/2014

Precedential Status: Precedential

Modified Date: 1/13/2023

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