United States v. Graf , 784 F.3d 1 ( 2015 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 14-1156
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    RICHARD GRAF,
    Defendant, Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MAINE
    [Hon. John A. Woodcock, Jr., U.S. District Judge]
    Before
    Lynch, Chief Judge,
    Thompson and Barron, Circuit Judges.
    Jonathan G. Mermin, with whom Preti, Flaherty, Beliveau &
    Pachios, LLP was on brief, for appellant.
    Margaret D. McGaughey, Assistant United States Attorney, with
    whom Thomas E. Delahanty II, United States Attorney, District of
    Maine, was on brief, for appellee.
    April 21, 2015
    THOMPSON, Circuit Judge.      Working on a tip from a
    confidential informant, police searched defendant-appellant Richard
    Graf's home, turning up marijuana and an illegal gun.      Graf was
    subsequently indicted on drug and firearm charges.
    He moved in a pre-trial motion to suppress the seized
    evidence, arguing to a Maine federal magistrate judge that to
    sweet-talk a state court justice of the peace into signing off on
    the search warrant application, a police detective sugarcoated the
    facts in his sworn statement accompanying it.       As part of his
    motion to suppress, Graf also requested an evidentiary hearing to
    challenge the affiant-detective's credibility.
    Neither the magistrate judge nor the district court was
    convinced and denied the motion.       Graf now appeals the denial,
    arguing that he was entitled to a full hearing to challenge the
    detective's veracity, and the magistrate judge improperly allowed
    the government to investigate itself before deciding his motion to
    suppress.
    Despite a valiant effort, we affirm the lower court.
    BACKGROUND
    The Controversial Warrant Affidavit
    In April 2011, Carl Gottardi, a detective lieutenant for
    the Somerset County Sheriff's Department in Maine, applied for a
    warrant to search Graf's home.         The warrant application was
    -2-
    supported by Gottardi's sworn statement, to which we'll refer from
    now on as "the Graf affidavit."
    In the Graf affidavit, Gottardi attested he had probable
    cause    to   believe    Graf    was    hiding     marijuana   and       other     drug
    accoutrements in his home, based on information Gottardi received
    from a confidential informant called "11-25."              11-25 "ha[d] been a
    very reliable informant . . . for the past several years," and had
    helped "obtain[] numerous drug search warrants, . . . with numerous
    persons   being    charged      and    convicted    of   various     .    .   .    drug
    offenses," Gottardi swore.             11-25 had "also provided other law
    enforcement officials with reliable drug related information in the
    past."
    Specific   to   this     case,   Gottardi   also     wrote      in    the
    affidavit that 11-25 relayed his personal knowledge that "for
    several years [] Graf has continually sold large amounts of
    marijuana," describing the location of the "camp type residence"
    where Graf sold his "high grade, commercial type" stuff.1                     Relying
    on Gottardi's affidavit, a state Justice of the Peace signed off on
    the warrant,2 and during the search of Graf's home, police found
    1
    To maintain the informant's confidentiality, the affidavit
    did not state one way or another whether 11-25's preferred gender
    pronoun was "he" or "she." For readability purposes only, we will
    refer to 11-25 as "he."
    2
    In Maine, justices of the peace, who are not necessarily
    judges but could be attorneys or other court officials, are
    permitted to issue search warrants.
    -3-
    marijuana plants and an unregistered short-barreled shotgun.     Not
    surprisingly, Graf was indicted on federal firearms possession and
    drug charges.
    Graf's Franks Motions
    In Franks v. Delaware, 
    438 U.S. 154
    , 155-56 (1978), the
    Supreme Court held that a defendant is entitled to an evidentiary
    hearing to "challenge the veracity of a sworn statement used by
    police to procure a search warrant," if "the defendant makes a
    substantial preliminary showing that a false statement knowingly
    and intentionally, or with reckless disregard for the truth, was
    included by the affiant in the warrant affidavit, and if the
    allegedly false statement is necessary to the finding of probable
    cause." In August 2011, Graf asked the federal trial court for one
    of these so-called Franks hearings, arguing that he should be able
    to test the veracity of the statements Gottardi made in his warrant
    affidavit.    Graf maintained via a sworn-to affidavit that at best,
    Gottardi embellished 11-25's reliability, but more likely, either
    Gottardi or the informant was simply lying.        In addition to a
    hearing, Graf also asked that the evidence seized from his home be
    suppressed.     Other than his affidavit, Graf supported his motion
    with nothing further.
    A magistrate judge denied the motion because, as she put
    it, Graf did "not allege, [or] . . . attempt to make a substantial
    preliminary showing, that [] Gottardi knowingly and intentionally
    -4-
    made false statements in the search warrant affidavit or included
    statements in reckless disregard of the truth."                       Rather, the
    magistrate judge decided, Graf "relie[d] entirely on the theory
    that       the     confidential     informant     gave   Gottardi      inaccurate
    information," which was not enough for a Franks hearing.
    Graf's team was undeterred, and his new lawyer decided to
    get to the bottom of things himself by digging up all the warrant
    applications filed by the Somerset County Sheriff's Department from
    April 2009 through April 2012 and searching for all references to
    "11-25."          Turns    out,   there   were   none,   that   is,   no   warrant
    applications filed prior to April 2011 (which was when Gottardi got
    the warrant to search Graf's home) naming "11-25" as an informant.
    "11-25" did appear, however, in two of the warrant applications
    filed after Graf's, but in each of the three affidavits where "11-
    25" was mentioned, the informant's background and history as a
    tipster were described a little differently.
    Armed with this new information, Graf marched back into
    court and filed a second motion to suppress and request for a
    Franks hearing.           This second go-round, Graf argued that he now had
    proof Gottardi "displayed a reckless disregard for the truth by
    exaggerating CI 11-25's reliability and use in the past."3
    3
    Curiously enough, Graf also argued to the trial court that
    the informant lied about ever being on Graf's property, evident
    because one, the directions the informant gave to Graf's house were
    incorrect and, two, were the informant ever actually there, he
    would have seen the sixty-eight marijuana plants "growing in plain
    -5-
    The government fired off an explanation, though, and in
    support of its opposition to the motion, submitted a supplemental
    affidavit from Gottardi describing his "practice to periodically
    change    the    identifying         numbers     assigned    to     confidential
    informants."     Gottardi also claimed that "the person designated CI
    11-25 in the Graf search warrant has been assigned four identifying
    numbers during the course of" his work with Gottardi. In addition,
    "[o]ccasionally, identifying numbers will be re-used for different
    persons," Gottardi swore.4
    Graf shot back, arguing that even if Gottardi was telling
    the truth about these so-called practices of his, "[b]y assigning
    the same CI numbers to three different individuals on three
    different   drug     cases    over    a   five   month   period,    Gottardi   is
    misleading those officials who are tasked with reviewing affidavits
    in   support    of   search    warrants."         Gottardi's      unconventional
    practice, Graf urged, "is meant to enhance the credibility of the
    [informant]     whose   number   repeatedly       appeared   before    the   same
    [reviewing official], even though, according to Gottardi, they are
    different people."
    sight" on Graf's property. Graf, however, did not pursue on appeal
    the informant's unreliability as an additional basis for
    discrediting Gottardi's affidavit.
    4
    Gottardi's affidavit suggests that these practices are his
    personal ones, and not necessarily the ones sanctioned by the
    sheriff's office or other law enforcement. Indeed, the government
    conceded at oral argument that reusing the same number for
    different informants is "highly irregular."
    -6-
    Magistrate's Preliminary Order
    In response, the magistrate judge issued a preliminary
    order noting that she was "not persuaded that Defendant ha[d] made
    a substantial preliminary showing that Lt. Gottardi supplied . . .
    false    representations      concerning     the    background    of   11-25    as
    described in his [April] 2011 warrant application."                    The judge
    explained: "[t]he mere fact that there is no earlier warrant
    application involving an informant identified as 11-25 readily can
    be explained by a practice of changing an informant’s numerical
    identifier over time."
    Still, Graf had "raised a serious concern" by "expos[ing]
    an irregular practice of identifying confidential informants that
    raises some cause for concern about Lt. Gottardi’s underlying
    affidavit."       The court noted that "assigning the same numerical
    identifier to three different confidential informants within a
    relatively brief timespan" was a "surprising revelation about what
    seems . . . a highly irregular, ill-advised, and potentially
    misleading      procedure."       Thus,   the     magistrate   judge   observed,
    Gottardi's      second   affidavit    "raises      as   many   questions   as   it
    resolves."
    Given her lingering concerns, the judge ordered the
    government to "investigate this matter to assure itself" that 11-25
    not     only     existed,   but    also     was     whom   Gottardi     claimed.
    Specifically, the government was to file an in camera report
    -7-
    addressing whether: the "11-25 described in the April 2011 warrant
    application is an ascertainable individual with the history and
    'pedigree' Lt. Gottardi has attributed to him"; "there were prior
    matters in which this same 11-25 (under whatever other identifier)
    supplied information supporting drug search warrants"; and "there
    were in fact three separate informants identified as 11-25 between
    April and October of 2011."       The judge also ordered that the
    "investigating individual [] be someone other than the prosecuting
    attorney assigned to this specific case and [] not be employed by
    the Somerset County Sheriff's Department or the Bureau of Alcohol,
    Tobacco or Firearms ["ATF"]."5      The investigation would "enable
    [the court] to determine whether [] a showing might be plausible if
    a Franks hearing were convened."
    Amendments to the Preliminary Order
    Shortly   after   the    magistrate   judge   entered   the
    preliminary order, the government filed a motion requesting that an
    ATF agent be permitted to conduct the investigation.       The judge
    held a telephone conference to hear the parties. She expressed her
    confusion about the government's motion; she had assumed the
    investigation would be akin to a paralegal from the U.S. Attorney's
    office simply "reviewing paperwork as opposed to a lot of field
    work and interviews and so on."    The government responded that it
    5
    ATF was the agency that presented Graf's case to the U.S.
    Attorney's Office to prosecute.
    -8-
    assumed     the     court    wanted    "an    agent      actually       going   out   and
    attempting to interview 11-25 and interviewing Mr. Gottardi and --
    to gather those facts that the Court asked that we investigate."
    Despite     the     court's     clarification       of    its    expectations,        the
    government pressed that it was "reluctant" to have someone from its
    office investigate because that person could later be called as a
    witness to answer "some additional questions that might not be
    apparent from the report."
    Graf objected, arguing that the court should assign a
    "neutral third party" to conduct the investigation, as opposed to
    someone from an agency that helped procure his prosecution.                           But
    over Graf's objection, the court allowed the government's request
    in   part    and    ordered     that   an     ATF   agent       could    "conduct     the
    investigation subject to the limitation that the ATF agent in
    charge of this case not be the one who conducts" it.
    The ATF Report
    On January 4, 2013, the government submitted its report
    to   the    court    in     camera.    In     the   report,      ATF     Special   Agent
    Christopher        Durkin     stated   that    in     addition      to    interviewing
    Gottardi, other police officers, and the informant designated as
    11-25 in the Graf affidavit, he also reviewed warrant applications
    from other cases to confirm Gottardi's statements in the affidavit.
    Satisfied after reviewing the report, the magistrate
    judge concluded that Graf did not make "a substantial preliminary
    -9-
    showing that [] Gottardi . . . or any other law enforcement
    officer, made untruthful or deliberately misleading statements in
    the affidavit," and recommended that the trial judge deny Graf's
    request for a Franks hearing. The district court judge adopted the
    magistrate judge's recommendation, over Graf's objection, also
    denying Graf's motion to suppress.
    Graf    ended   up    pleading    guilty     to   possessing    an
    unregistered shotgun and manufacturing marijuana, reserving his
    right to appeal the denial of his motion to suppress. The district
    court sentenced him to two years in prison, among other conditions.
    This timely appeal followed.
    STANDARDS OF REVIEW
    "We review the denial of a Franks hearing for clear
    error."   United States v. Reiner, 
    500 F.3d 10
    , 14 (1st Cir. 2007)
    (citation omitted). Clear error "exists only when we are left with
    the   definite     and   firm    conviction   that   a   mistake   has     been
    committed."      United States v. Hicks, 
    575 F.3d 130
    , 138 (1st Cir.
    2009) (citation and quotations omitted).
    "We apply a mixed standard of review to the district
    court's denial of a motion to suppress, reviewing findings of fact
    for clear error and conclusions of law, including whether a
    particular set of facts constitutes probable cause, de novo."
    United States v. Belton, 
    520 F.3d 80
    , 82 (1st Cir. 2008) (citation
    omitted).   "To prevail, [a defendant] must show that no reasonable
    -10-
    view       of   the   evidence   supports    the   denial   of   the   motion   to
    suppress."        
    Id. (citation omitted).
    DISCUSSION
    Graf's main argument on appeal is that the trial court
    erred by denying him the opportunity to challenge Gottardi's
    affidavit at a formal Franks evidentiary hearing, where he would
    have had been able to cross-examine Gottardi.               More specifically,
    Graf relies on out-of-circuit precedent to argue that "the court
    should not give the government an opportunity to present its
    evidence on the validity of the warrant" without holding a "full
    evidentiary Franks hearing."6               Graf also offers the secondary
    argument that even if the lower court did not procedurally err in
    hearing out the government before making its Franks ruling, the
    particular procedure chosen by the magistrate judge -- to allow
    ATF, a government entity, to investigate the truthfulness of Graf's
    6
    We note that Graf does not appear to have raised this
    argument to the district court. To the contrary, in his response
    to the government's opposition to his motion to suppress, Graf
    actually uses Gottardi's supplemental affidavit to boost his own
    case -– Gottardi's "false information about using [the informant]
    previously and overstat[ing] the charges he was facing," and "that
    Gottardi constantly changes CI's in a way which makes little
    sense," "[w]hen combined together," "presents this Court with the
    requisite 'substantial preliminary showing' that Gottardi's
    affidavit contains false statements." Generally, we deem arguments
    not raised before the district court waived. Millay v. Me. Dep't
    of Labor, Bureau of Rehab., Div. for Blind & Visually Impaired, 
    762 F.3d 152
    , 157 n.4 (1st Cir. 2014). But given that the government
    did not raise the waiver issue, we will address Graf's argument.
    -11-
    affidavit statements -- was sufficient error such that we should
    vacate the denial of his motion to suppress and remand it.
    We discuss each of these arguments in turn.
    Substantial Preliminary Showing Under Franks
    Addressing Graf's primary argument requires us to unpack
    it.   In so doing, we are left with two distinct issues.   The first
    is a generally applicable legal proposition -- as a procedural
    matter, whose evidence is a trial judge allowed to consider in
    making the threshold determination that a defendant has not made a
    substantial preliminary Franks showing?    In other words, is Graf
    correct in arguing that a court is limited to reviewing only the
    materials a defendant submits, or is the court also permitted to
    consider additional evidence submitted by the government?7      The
    second question is a case-specific one -- if Graf carries the day
    on the first point and the magistrate judge was supposed to
    consider only his offer of proof, was the evidence Graf submitted
    enough to make a substantial preliminary showing that Gottardi lied
    in the affidavit in question?8
    7
    In making this argument, Graf urges us to adopt the holding
    of United States v. McMurtrey, 
    704 F.3d 502
    , 510 (7th Cir. 2013),
    where the Seventh Circuit held that "in deciding the threshold
    question whether to grant a Franks hearing, the court should have
    limited its consideration of new information to the defense's
    evidence tending to refute probable cause. The court should not
    have considered at that preliminary step the government's
    explanation of the contradictions and discrepancies."
    8
    As we mentioned above, Franks also requires that the false
    statement be made knowingly or intentionally (or with reckless
    -12-
    Unlike the McMurtrey court, neither we nor the Supreme
    Court has explicitly addressed whether it constitutes legal error
    for a trial court to consider government evidence before deciding
    whether a Franks hearing is warranted.      We need not do so today.
    For purposes of our analysis, we can assume, without deciding, that
    Graf's take on the first question is the correct one because, as we
    discuss below, he still fails on the second question.
    In sum, we find that the evidence Graf submitted to the
    magistrate judge did not show that Gottardi lied in the affidavit
    in question, and therefore, Graf has not convinced us that the
    lower court clearly erred in denying him a Franks hearing.
    Legal Backdrop
    To frame our analysis, we'll first look at what it means
    to make a substantial preliminary showing in the Franks context.
    A search warrant affidavit "must set forth particular
    facts and circumstances underlying the existence of probable cause"
    to search.    
    Franks, 438 U.S. at 165
    .   Sometimes, law enforcement
    agents seeking search warrants rely on tips from confidential
    informants to form the basis of probable cause.      In those cases,
    disregard for the truth) and be necessary to the finding of
    probable cause. The only issue either party focuses on in this
    case, though, is the falsity of Gottardi's statements. That is,
    the government does not dispute that if Gottardi made false
    statements, he did so knowingly or with reckless disregard.
    Likewise, the government does not argue that the allegedly false
    statements were not necessary to the finding of probable cause, and
    Graf does not argue that the warrant application, on its face, was
    insufficient for a probable cause finding.
    -13-
    "the affidavit must recite some of the underlying circumstances
    from which the informant concluded that relevant evidence might be
    discovered, and some of the underlying circumstances from which the
    officer concluded that the informant . . . was credible or his
    information reliable."       
    Id. (citations and
    quotations omitted);
    United States v. Gifford, 
    727 F.3d 92
    , 99 (1st Cir. 2013) ("Where
    the primary basis for a probable cause determination is information
    provided by a confidential informant, the affidavit must provide
    some information from which a magistrate can credit the informant's
    credibility.").
    Assuming such conditions are met, it has long been the
    case that "[a]n affidavit submitted in support of a search warrant
    application is presumed valid."      United States v. Grant, 
    218 F.3d 72
    , 77 (1st Cir. 2000) (citations omitted); see 
    Franks, 438 U.S. at 171
    .     In Franks, however, the Supreme Court was tasked with
    deciding whether this "presumption of validity" is absolute, or
    whether "in certain circumstances, a challenge [by a defendant] to
    a warrant's veracity must be permitted."        
    Franks, 438 U.S. at 164
    ,
    167, 171.
    The Court decided that a "factual showing sufficient to
    comprise probable cause . . . [must] be a truthful showing," "in
    the    sense   that   the   information   put   forth   is   believed   or
    appropriately accepted by the affiant as true."          
    Id. at 164-65.
    Taking into consideration the practical limitations of drafting a
    -14-
    warrant affidavit (for instance, "an affidavit may properly be
    based on hearsay, on fleeting observations, and on tips received
    from unnamed informants"), 
    id. at 167,
    the Court ultimately held
    that when a "defendant makes a substantial preliminary showing that
    a false statement knowingly and intentionally, or with reckless
    disregard for the truth, was included by the affiant in the warrant
    affidavit, and if the allegedly false statement is necessary to the
    finding of probable cause, the Fourth Amendment requires that [an
    evidentiary] hearing be held at the defendant's request."           
    Id. at 155-56.
    If the defendant shows at the evidentiary hearing "perjury
    or reckless disregard," "the search warrant must be voided and the
    fruits of the search excluded," unless there is another basis for
    probable cause in the warrant besides the false statements. 
    Id. at 156.
    The   high   Court   further   mandated      that   to   make   a
    substantial preliminary showing, a defendant must make "allegations
    of deliberate falsehood or of reckless disregard for the truth . .
    . accompanied by an offer of proof."     
    Id. at 171.
       His "attack must
    be more than conclusory and must be supported by more than a mere
    desire to cross-examine." 
    Id. He must
    "point out specifically the
    portion of the warrant affidavit that is claimed to be false" and
    accompany his allegations with a "statement of supporting reasons."
    
    Id. "Affidavits or
    sworn or otherwise reliable statements of
    -15-
    witnesses should be furnished, or their absence satisfactorily
    explained."      
    Id. Against that
    backdrop, we turn to the specifics of Graf's
    case.
    No Substantial Preliminary Showing
    During the trial court proceedings, Graf pressed that the
    government's      explanation   of   the    discrepancies   in   the   three
    affidavits that named "11-25" made no sense, and so he needed a
    hearing to determine whether the detective was telling the truth.
    On appeal, however, Graf takes a different tact -- he instead
    distinctly implores us not to consider any additional evidence or
    justification from the government, urging that it is legal error to
    do so.      Thus, even though we know, now, that Gottardi may actually
    have used the designation "11-25" to refer to three different
    people in the three affidavits, Graf asks us not to consider that
    explanation.      Therefore, our review is limited to whether Graf's
    motion for a Franks hearing and his accompanying evidence were
    facially sufficient to make a substantial preliminary showing.9
    9
    We do not mean to suggest that Gottardi's explanation for
    the affidavit discrepancies is necessarily a legitimate one. It's
    difficult to imagine how a law enforcement agent -- maintaining
    records of multiple criminal targets over a number of years --
    would be able to keep straight several informants -- of similar
    pedigrees and offering similar types of information -- by using one
    number.
    Of greater concern, however, is that, as the government
    concedes, to adopt such a procedure is "highly irregular," and as
    far as we can tell, there is no indication on this record that the
    justice of the peace who reviewed Gottardi's warrant applications
    -16-
    For the reasons discussed below, we find that Graf did
    not meet his burden.
    Graf   argues   that   he   successfully   demonstrated   that
    Gottardi lied in the Graf affidavit in two ways.           First, Graf
    argues, Gottardi swore in the April 2011 affidavit that "11-25
    ha[d] been a very reliable informant . . . for the past several
    years," and that he had been able to get sign-off on "numerous"
    warrants by utilizing information he got from 11-25.         But, Graf
    contends, a review of the warrant applications filed by the
    Somerset Sheriff's office from April 2009 to April 2011 showed that
    none actually listed "11-25" as an informant.           Second, in two
    warrant applications filed after Graf's, both Gottardi and his
    colleague claimed to have relied on tips from "11-25."       But, Graf
    argues, in both of those affidavits and in the Graf affidavit, the
    was aware that Gottardi took up such an unusual practice.        To
    alleviate this concern, which was shared by the magistrate judge,
    the government argues that a "side-by-side comparison" of the three
    affidavits "supports the conclusion that three different
    individuals had been given the designation of CI 11-25." But as
    our analysis shows, that is not necessarily so.        An official
    reviewing the three affidavits could easily interpret the
    affidavits the way we do -- as slightly different from each other,
    but not inconsistent, such that all three affidavits could be
    describing the same informant. Thus, unless a justice of the peace
    has some reason to know that police would be using the same (rather
    specific) identifying number for multiple individuals, we agree
    with the magistrate judge that such a practice is "potentially
    misleading" and therefore "ill-advised."     Because Graf did not
    raise the argument on appeal, however, we do not have occasion to
    decide today -- and therefore will not comment on -- which
    direction the government's justification for the affidavit
    discrepancies might have tipped the scale in this case.
    -17-
    descriptions of "11-25" are all different, suggesting that "11-25"
    doesn't really exist.
    Graf's first point lacks luster.           The fact that "11-25"
    does not appear in earlier search warrant affidavits is not, on its
    own, sufficient to make a substantial showing that Gottardi lied.
    As the magistrate judge indicated, it makes sense that to protect
    an   informant's   identity,    law    enforcement     would    use   different
    numbers to identify the same person, and the Graf affidavit
    specifically stated that "said informant is herein referred to as
    11-25."     (Emphasis added).      Thus, Gottardi's statement did not
    foreclose the possibility that the informant was identified by some
    other number in other warrant applications.
    But Graf's second point gives us pause.             In two warrant
    applications filed after Graf's (in July and October 2011),10
    Gottardi and a staff sergeant, Michael W. Knight, claimed to have
    relied on 11-25's tips.       As Graf points out, however, in all three
    affidavits, the descriptions of 11-25 are a little different.
    Specifically, in the Graf affidavit, filed in April,
    Gottardi says that "11-25": (1) helped him get "drug search
    warrants"    resulting   in    "numerous     persons    being    charged    and
    convicted of various felony/misdemeanor drug offenses"; (2) was a
    "drug user" with a "criminal record, to include convictions for
    10
    The July and October 2011 affidavits don't appear to be
    related to Graf's case.
    -18-
    drug related offenses"; (3) over the past several years, had
    "routinely assisted . . . in apprehending drug dealers, without
    requesting any type of consideration," while other times assisting
    "to   hopefully   gain   consideration   on   pending   criminal   charges
    against" him; and (4) had no charges pending against him at the
    time and did not ask for anything in return for providing the
    information that incriminated Graf.
    Then in the July 2011 application, Gottardi described
    "11-25" like this: (1) he had helped Gottardi "solve[] numerous
    felony level crimes, to include Robbery, burglaries and drug
    cases"; (2) had made controlled drug buys for police; (3) had
    "routinely assisted . . .      over the past several years, without
    requesting any type of consideration," and had provided assistance
    even when he did not have criminal charges pending against him; (4)
    had a criminal record, including "felony level convictions"; (5)
    was a "past known drug dealer/drug user"; and (6) did not have any
    criminal charges pending against him at the time or request any
    consideration for helping out with the case.
    Finally, in the October 2011 affidavit, Knight stated
    that Gottardi told him "11-25": (1) was a "known drug user"; (2)
    who had made controlled drug purchases for police; and (3) was
    "presently assisting [Gottardi] with apprehending drug dealers . .
    . in hopes that the District Attorney will take [his] cooperation
    -19-
    into consideration, regarding felony level criminal charges that
    are presently pending against [him]."
    Graf argues that "taken together [these descriptions]
    raise a substantial question about just how many different crimes
    one confidential informant could have reported to Gottardi."                   A
    closer look, however, shows that while the descriptions of "11-25"
    are not identical in the three affidavits, as Graf concedes, the
    descriptions "are not necessarily inconsistent."            To be sure, only
    the July warrant application mentions robberies and burglaries (the
    other two affidavits focus exclusively on drug-related crimes).
    But as we noted above, we view search warrant affidavits under a
    lens of presumed validity, and theft is not so far-removed from
    drug-dealing     that   it   would   raise   an   eyebrow    that    11-25   had
    knowledge   of   both   types   of   crimes.      Further,    that    Gottardi
    mentioned robberies and burglaries in only the July affidavit, and
    not in the others, does not mean we should infer that 11-25 is not
    the same person in all three. Gottardi could simply have failed to
    mention the theft crimes in the April and October affidavits.
    Finally, while 11-25 did not have any charges pending against him
    in April or July, it's certainly possible that he caught one by the
    time October rolled around.
    Thus, even without taking into account the government's
    explanation for the affidavits' discrepancies, we do not have a
    "definite and firm conviction" that Gottardi lied in his April 2011
    -20-
    affidavit, such that we could say that the lower court clearly
    erred in denying Graf's request for a Franks hearing.        Indeed, all
    three descriptions of 11-25 paint a picture of a drug user who,
    when he feels so inclined and probably to squirrel away the good
    favor of police in case he needs it later, helps cops catch drug
    dealers.
    As we have acknowledged in the past, making a substantial
    preliminary   showing   is   no   easy    feat,   particularly   when   law
    enforcement relies on tips from unnamed confidential informants.
    See United States v. Higgins, 
    995 F.2d 1
    , 3 (1st Cir. 1993) ("When
    the government obtains a search warrant based on information
    provided by a confidential informant, defendants often lack the
    information required to meet the exacting standards of Franks.").
    Graf, like many other defendants in the same boat, has simply
    failed to meet his burden of making a substantial preliminary
    showing -- particularly under the deferential clear error standard
    of review we afford to a court's denial of a Franks hearing.
    Given our holding, then, we need not reach whether the
    magistrate judge procedurally erred in crediting the government's
    side of the story before making a final ruling on Graf's Franks
    motion -- as we discussed above, Graf's submissions fail to make
    the requisite showing.
    -21-
    Motion to Suppress
    We also briefly address Graf's secondary argument that
    even if it were proper for the trial court to consider the
    government's evidence in making its Franks ruling, we should "still
    vacate the denial of the motion to suppress on the ground that the
    government should not have been permitted to investigate itself."
    "In order for a warrant to be voided and the fruits of
    the search excluded, the defendant must meet an even more exacting
    standard [than for a Franks hearing]: he must (1) show that the
    affiant in fact made a false statement knowingly and intentionally,
    or with reckless disregard for the truth, (2) make this showing by
    a preponderance of the evidence, and (3) show in addition that with
    the affidavit's false material set to one side, the affidavit's
    remaining content is insufficient to establish probable cause."
    United States v. Tzannos, 
    460 F.3d 128
    , 136 (1st Cir. 2006)
    (quoting 
    Franks, 438 U.S. at 156
    ) (quotations omitted).
    As we discussed above, Graf has failed to show that
    Gottardi made a false statement in his warrant affidavit, and
    certainly has not done so by a preponderance of the evidence. Graf
    also offers absolutely no law to support his contention that
    although he failed to make a preliminary showing that Gottardi
    lied, the magistrate judge was still under an obligation to probe
    further, let alone order that an investigation be conducted by a
    person of his choosing.     Graf, in fact, does not even set out a
    -22-
    standard of review for this inquiry.       We consider the argument
    waived for lack of development.   See United States v. Zannino, 
    895 F.2d 1
    , 17 (1st Cir. 1990).
    CONCLUSION
    For these reasons, we affirm the district court.
    -23-