Commonwealth v. St. Louis , 473 Mass. 350 ( 2015 )


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    SJC-11862
    COMMONWEALTH   vs.   RICHARD J. ST. LOUIS.
    Berkshire.     September 8, 2015. - December 23, 2015.
    Present:   Gants, C.J., Spina, Cordy, Botsford, Duffly, Lenk, &
    Hines, JJ.
    Indecent Assault and Battery on a Person with an Intellectual
    Disability. Indecent Assault and Battery on a Retarded
    Person. Indecent Exposure. Intellectually Disabled
    Person. Mentally Retarded Person. Constitutional Law,
    Vagueness of statute, Assistance of counsel, Ex post facto
    law. Due Process of Law, Vagueness of statute. Practice,
    Criminal, Instructions to jury, Required finding, New
    trial, Assistance of counsel. Consent.
    Indictments found and returned in the Superior Court
    Department on October 24, 2011.
    The cases were tried before John A. Agostini, J., and a
    motion for a new trial was considered by him.
    The Supreme Judicial Court on its own initiative
    transferred the case from the Appeals Court.
    Michael J. Hickson for the defendant.
    John P. Bossé, Special Assistant District Attorney, for the
    Commonwealth.
    2
    SPINA, J.    In this case, we are asked to examine whether
    the term "intellectual disability" in G. L. c. 265, § 13F
    (indecent assault and battery on a person with an intellectual
    disability), renders the statute unconstitutionally vague.     On
    the effective date of November 2, 2010, the Legislature amended
    the statute substituting the term "mentally retarded person"
    with "person with an intellectual disability" as well as the
    words "be mentally retarded" with "have an intellectual
    disability."     St. 2010, c. 239, §§ 71-72.   These amendments were
    part of a broad legislative scheme that purged the term
    "mentally retarded" from the General Laws.     St. 2010, c. 239
    ("An Act eliminating the word 'retardation' from the General
    Laws").   As a result, G. L. c. 265, § 13F, now states: "Whoever
    commits an indecent assault and battery on a person with an
    intellectual disability knowing such person to have an
    intellectual disability shall . . . be punished . . . ."      The
    term "intellectual disability" is not defined by the statute.
    The defendant was convicted on four indictments alleging
    indecent assault and battery on a person with an intellectual
    disability,1 one indictment alleging indecent exposure, and one
    1
    One indictment involved the touching of the defendant's
    penis by the victim. A second involved the defendant touching
    the victim's vagina with his hands. A third involved the
    defendant touching the victim's breast with his hands. The
    fourth involved the defendant touching the victim's breast with
    3
    indictment alleging accosting or annoying a person of the
    opposite sex.   The crimes were alleged to have occurred between
    on or about January 1, 2008, which was before the effective date
    of the statutory amendments, and on or about September 16, 2011.
    At the close of the Commonwealth's evidence, the defendant
    moved for required findings of not guilty on all charges.     A
    judge in the Superior Court entered a required finding of not
    guilty on an indictment alleging intimidation of a witness but
    denied the motion as to the remaining charges.
    At the close of all the evidence, the defendant renewed his
    motion for required findings of not guilty on the remaining
    charges, which was denied.   Appellate proceedings were stayed to
    allow the defendant to file postconviction motions.   The
    defendant filed postconviction motions for a new trial under
    Mass. R. Crim. P. 30 (b), as appearing in 
    435 Mass. 1501
     (2001),2
    and for a required finding of not guilty under Mass. R. Crim. P.
    25 (b) (2), as amended, 
    420 Mass. 1502
     (1995),3 both of which
    his mouth. The jury found him not guilty on a fifth indictment
    involving evidence that he put his mouth on the victim's vagina.
    2
    In his motion for a new trial, the defendant alleged that
    counsel was ineffective for failing to file a motion to dismiss
    the indictments charging indecent assault on a person with an
    intellectual disability on grounds that the statute was
    unconstitutionally vague, and that he had been charged under an
    ex post facto law.
    3
    In his postconviction motion for required findings of not
    guilty, the defendant alleged that the evidence was insufficient
    4
    were denied by the trial judge.    The defendant appealed from the
    denial of his postconviction motions.     The Appeals Court
    consolidated the two appeals.    We transferred the case to this
    court on our own motion.
    On appeal, the defendant asserts (1) that the term
    "intellectual disability" renders G. L. c. 265, § 13F,
    unconstitutionally vague; (2) that he was convicted under an ex
    post facto law; (3) that the judge erred by denying certain of
    his motions for a required finding of not guilty; and (4) that
    the judge erred by denying his motion for a new trial.        For the
    following reasons, we conclude that G. L. c. 265, § 13F, is
    constitutional, and we affirm the judge's rulings.
    1.     Background.   The jury could have found the following
    facts.    In 2013, at the time of trial, Amy4 was a twenty-four
    year old woman.    At the time of the incidents, Amy lived in a
    farmhouse with a wraparound porch in Hancock with her mother and
    her maternal grandfather.    She was adopted at birth, and at the
    age of eight months she was diagnosed with "slow learning" and
    "special needs."    Amy reads at a third or fourth grade level and
    has a verbal intelligence quotient (IQ) of forty-seven.       In
    to warrant convictions on the indictments charging him with
    indecent assault and battery on a person with an intellectual
    disability, and that he had been charged under an ex post facto
    law.
    4
    A pseudonym.
    5
    2008, after Amy reached age eighteen, her mother and grandfather
    were appointed legal guardians of her.       According to the
    permanent decree of guardianship admitted in evidence, a judge
    in the Probate and Family Court found that Amy is "mentally
    retarded" and that failure to appoint a guardian would create
    risk to her health and welfare.      The medical certificate
    supporting the permanent decree of guardianship details Amy's
    disability as being mental retardation and states that she lacks
    the ability to make decisions without adult supervision.5
    At the time of trial, the defendant was seventy-two years
    old.       He is a retired boat builder, which he had done for forty-
    six years, but he continued to work part time doing fiberglass
    work.      His hobbies included hunting and fishing.    He and a
    friend used to hunt in western Massachusetts.       The friend
    introduced him to Amy's great grandmother.       In the early 1980s,
    he began to hunt on the property where Amy and her family live.
    The defendant and Amy's grandfather forged a friendship and grew
    close over the years.       The defendant would visit the family two
    to three times a year and hunt on the property.        He typically
    would stay for one or two weeks at a time in his camper, which
    5
    The medical certificate also reports that Amy's most
    recent evaluations at the time illustrated her problem-solving
    ability to be at a four year old level.
    6
    he parked behind the farmhouse.     The defendant came to know Amy,
    and he described her as behaving "like a child more or less."
    On September 11, 2011, Amy and the defendant were sitting
    side by side, alone on the porch.     The boy friend of Amy's
    mother was folding laundry in front of a window overlooking the
    porch.    While sitting next to the defendant, Amy dropped her
    hand to his leg and slowly moved her hand up toward the
    defendant's crotch area.     Amy began to "rub" and "pet" the
    defendant's penis over his pants.     Amy testified that the
    defendant did not ask her to do this but that it was "his idea."
    Amy's mother's boy friend watched this occur from the window,
    and after watching for a few moments, he went to the staircase
    and called up to Amy's mother to come downstairs.     She and her
    boy friend watched Amy and the defendant from the downstairs
    window.    Amy's mother saw Amy's hand on the defendant's leg,
    next to his penis.    Upon seeing this, Amy's mother frantically
    knocked on the window and told Amy to come inside.
    Amy went inside, and her mother took her upstairs to talk
    to her.    Once they were upstairs, Amy began to tell her mother
    about various incidents when the defendant touched her
    inappropriately.     Amy's mother made written notes of Amy's
    account of the incidents.6    These incidents occurred over a
    6
    Amy's mother testified as a first complaint witness.
    7
    period of three years, always outside the defendant's camper.7
    Amy would walk with the defendant back to his camper after
    dinner.    According to Amy's testimony, the defendant touched her
    breasts, her vagina, and kissed her multiple times on the mouth,
    breasts, and vagina.     Amy testified that these events made her
    feel uncomfortable.    She testified to one particular incident
    where the defendant put his hand on the back of her head and
    forced her head down toward his penis because he wanted her to
    perform oral sex.     She refused and told him she did not want to
    do that.   The defendant told her to keep it a secret because, if
    she did not, he could get in trouble.      Amy testified that the
    defendant's penis was exposed but that she could not see it
    because it was dark out and she could not describe it.
    After the September 11 incident, Amy was not allowed to go
    outside the house while the defendant was still on the property,
    and the defendant was not allowed in the home.      The defendant
    stayed for about another week on the property.      A few days after
    Amy made these disclosures, her mother reported the incidents to
    the police, who then began an investigation.
    2.    Indecent assault and battery on person with
    intellectual disability.     a.   Constitutionality of G. L. c. 265,
    7
    Although Amy testified that these various incidents of
    inappropriate touching occurred over three years, the record
    does not state specific dates. Three years before the
    September 11, 2011, porch incident would be 2008, before the
    effective date of the statutory amendments.
    8
    § 13F.    The defendant argues that the term "intellectual
    disability" renders § 13F unconstitutionally vague on its face
    under the State and Federal Constitutions because the term is a
    "neologism" that does not have a usual and accepted meaning.       We
    disagree.    The defendant did not raise the issue in a pretrial
    motion to dismiss, the required procedure for a facial challenge
    based on vagueness.8    See Commonwealth v. Moses, 
    436 Mass. 598
    ,
    605 n.4 (2002); Commonwealth v. Chou, 
    433 Mass. 229
    , 237 (2001).
    We review under the standard of a substantial risk of a
    miscarriage of justice.
    The void-for-vagueness doctrine is well established in our
    jurisprudence.    "It is a basic principle of due process that an
    enactment is void for vagueness if its prohibitions are not
    clearly defined."     Grayned v. Rockford, 
    408 U.S. 104
    , 108
    (1972).     A criminal statute must define the offense "in terms
    that are sufficiently clear to permit a person of average
    intelligence to comprehend what conduct is prohibited."
    Commonwealth v. Spano, 
    414 Mass. 178
    , 180 (1993).     See Kolender
    v. Lawson, 
    461 U.S. 352
    , 357 (1983); Commonwealth v. Bohmer, 374
    8
    An as-applied challenge based on vagueness frequently
    depends on the evidence at trial, and may be raised in a motion
    for a required finding of not guilty. See Commonwealth v.
    Kwiatkowski, 
    418 Mass. 543
    , 545 (1994). If a defendant fails to
    raise an as-applied challenge in a motion for a required finding
    of not guilty, the issue will be considered under the standard
    of a substantial risk of a miscarriage of justice. See
    Commonwealth v. Chou, 
    433 Mass. 229
    , 238 (2001).
    
    9 Mass. 368
    , 371-372 (1978).     "When a statute does not define its
    words we give them their usual and accepted meanings, as long as
    these meanings are consistent with the statutory purpose. . . .
    We derive the words' usual and accepted meanings from sources
    presumably known to the statute's enactors, such as their use in
    other legal contexts and dictionary definitions" (citations
    omitted).   Commonwealth v. Bell, 
    442 Mass. 118
    , 124 (2004).       A
    criminal statute must not be so vague that it opens itself up to
    arbitrary enforcement and prosecution.     See Grayned, 
    supra at 108-109
    ; Commonwealth v. Freiberg, 
    405 Mass. 282
    , 289, cert.
    denied, 
    493 U.S. 940
     (1989).     "[A] vague statute offends by its
    lack of reasonably clear guidelines for law enforcement and its
    consequent encouragement of arbitrary and erratic arrests and
    prosecutions."   Commonwealth v. Sefranka, 
    382 Mass. 108
    , 110
    (1980).
    However, "[i]t is not infrequent that prescribed conduct is
    incapable of precise legal definition."     Jaquith v.
    Commonwealth, 
    331 Mass. 439
    , 442 (1954).     "[L]egislative
    language need not be afforded 'mathematical precision' in order
    to pass constitutional muster."     Commonwealth v. Reyes, 
    464 Mass. 245
    , 249 (2013), quoting Bohmer, 374 Mass. at 372.      A
    statute will be deemed constitutional if it "conveys [a]
    sufficiently definite warning as to the proscribed conduct when
    measured by common understanding and practices."     Commonwealth
    10
    v. Adams, 
    389 Mass. 265
    , 270 (1983), quoting Commonwealth v.
    Jarrett, 
    359 Mass. 491
    , 496-497 (1971).     See Reyes, supra.
    In this case, we conclude that the term "intellectual
    disability" is sufficiently clear and definite and is therefore
    not unconstitutionally vague.    The legislative history of § 13F,
    as amended through St. 2010, c. 239, §§ 71-72, makes it clear
    that the Legislature's intent was merely to change the
    nomenclature and not the substance of the statute.
    Section § 13F was amended in 2010 in conjunction with
    numerous other laws by an act entitled, "An Act eliminating the
    word 'retardation' from the General Laws."    St. 2010, c. 239.
    The only revision made to § 13F was a substitution of the term
    "person with an intellectual disability" for the term "mentally
    retarded person" and the words "have an intellectual disability"
    for "be mentally retarded."     No substantive changes to § 13F
    were made by these amendments.    This change in language was part
    of a larger legislative scheme to eradicate the pejorative term
    "mentally retarded" from the General Laws.9    St. 2010, c. 239.10
    9
    In addition to purging the General Laws of the term
    "mentally retarded," many other similar modifications took place
    in the quest for more respectful language. Prior to 2009, the
    Department of Developmental Services, the agency charged with
    providing services to individuals with intellectual
    disabilities, was known as the Department of Mental Retardation.
    See G. L. c. 19B, § 1, as amended through St. 2008, c. 182, § 9.
    Correspondingly, the department amended its regulations by
    substituting "intellectual disability" for the term "mental
    retardation," but notably did not alter the substantive
    11
    Indeed, Massachusetts was part of a nationwide trend by which
    the United States Congress and many other State Legislatures
    enacted similar legislation in order to promote respect and
    dignity to those with intellectual disabilities.11   The
    definition. Compare 115 Code Mass. Regs. § 2.01 (2009)
    (defining "mental retardation" as "significantly sub-average
    intellectual functioning existing concurrently and related to
    significant limitations in adaptive functioning. Mental
    retardation manifests before age [eighteen]"), with 115 Code
    Mass. Regs. § 2.01 (2012) (defining "intellectual disability" as
    "significantly sub-average intellectual functioning existing
    concurrently with and related to significant limitations in
    adaptive functioning. Intellectual Disability originates before
    age [eighteen]").
    Additionally, Governor Deval Patrick issued an executive
    order to rename the Governor's Commission on Mental Retardation
    as the Governor's Commission on Intellectual Disability.
    Executive Order No. 521 (Mar. 31, 2010). In support of renaming
    the commission, the executive order referenced the widespread
    movement in using "intellectual disability," stating,
    "[Whereas], there is a strong trend, nationally and
    internationally, to use the term 'intellectual disability'
    rather than mental retardation . . . ." Id.
    10
    The Legislature did not succeed completely in eliminating
    the term "mentally retarded" from the General Laws. The last
    sentence of the second paragraph of G. L. c. 265, § 13F, was not
    amended, and states: "This section shall not apply to the
    commission of an assault and battery by a mentally retarded
    person upon another mentally retarded person." We perceive this
    to be a mere oversight that does not affect our analysis.
    11
    In 2010, President Barack Obama signed legislation
    entitled "Rosa's Law" that amended various Federal education,
    labor, and health laws by removing the words "mental
    retardation" and replacing them with the words "intellectual
    disabilities." Pub. L. 111-256, 111th Cong., 
    124 Stat. 2643
    (2010). In 2012, California enacted a law that eliminated the
    words "mentally retarded" in State laws, regulations, and
    publications and replaced them with the words "intellectual
    disability." 2012 Cal. St. c. 457. In 2013, the Social
    12
    Legislature did not intend to change the substance of the
    statute with the substitution of the words "intellectual
    disability" but only intended the statute to contain more
    respectful and acceptable terms.
    The term "intellectual disability" is not defined by § 13F.
    In such cases we apply the familiar rule of statutory
    construction that guides us to give the words "their usual and
    accepted meanings, as long as these meanings are consistent with
    the statutory purpose."   Bell, 442 Mass. at 124, quoting
    Commonwealth v. Zone Book, Inc., 
    372 Mass. 366
    , 369 (1977).    As
    has been discussed, "intellectual disability" has become the
    accepted term for someone who would have been described as
    mentally retarded prior to the various statutory and regulatory
    amendments.   The definition of "mentally retarded" in 115 Code
    Security Administration promulgated a final rule that eliminated
    the term "mental retardation" and replaced it with "intellectual
    disability." 
    78 Fed. Reg. 46,499
     (2013). The agency explained,
    "This change reflects the widespread adoption of the term
    'intellectual disability' by Congress, government agencies, and
    various public and private organizations." 
    Id.
     The United
    States Supreme Court has discontinued use of the term "mental
    retardation" and now uses the term "intellectual disability."
    Hall v. Florida, 
    134 S. Ct. 1986
    , 1990 (2014). Justice Kennedy,
    in an opinion analyzing a Florida statute regarding the death
    penalty and intellectually disabled defendants, stated by way of
    introduction: "Previous opinions of this Court have employed
    the term 'mental retardation.' This opinion uses the term
    'intellectual disability' to describe the identical phenomenon."
    
    Id.
     He went on to explain that the term "intellectual
    disability" is also used in the latest edition of the Diagnostic
    and Statistical Manual of Mental Disorders. 
    Id.
    13
    Mass. Regs. § 2.01 prior to the 2010 statutory amendments was
    identical to the definition given to the term "intellectual
    disability" in the regulations after the statutory amendments.
    See note 9, supra.
    Prior to the 2010 amendments, Massachusetts courts had
    referenced the definition of "mental retardation" found in the
    regulations of the Department of Developmental Services
    (department) to define "mental retardation" under § 13F and
    other statutes.   See e.g., Commowealth v. Fuller, 
    66 Mass. App. Ct. 84
    , 96 (2006); Commonwealth v. Aitahmedlamara, 
    63 Mass. App. Ct. 76
    , 76-77 (2005) (discussing "usual and accepted meaning" of
    "mental retardation" under § 13F).    "Administrative regulations
    have been frequently used as guides to determine the meaning of
    statutory provisions."    1A N.J. Singer & J.D. Shambie Singer,
    Statutes and Statutory Construction § 31.6, at 696 (7th ed.
    2009).    In Fuller, supra, the Appeals Court held that an
    instruction given to a jury regarding the definition of "mental
    retardation" "was consistent with the usual and accepted
    understanding of the meaning of the words 'mentally retarded' as
    well as the definition promulgated by the [Department of Mental
    Retardation] at 115 Code Mass. Regs. § 2.01 (1994)."12    Fuller,
    12
    In Executive Order No. 521, changing the name of the
    Governor's Commission on Mental Retardation, Governor Deval
    Patrick stated, "[Whereas], the Department of Developmental
    Services changed its regulations to make the term 'intellectual
    14
    supra.    The trial judge in Fuller had instructed the jury that
    "[a] mentally retarded person is a person who, as a result of
    inadequately developed or impaired intelligence, is
    substantially limited in his or her ability to learn or to adapt
    to the means necessary to function effectively in the
    community."   Id. at 94.   As noted above in note 9, the
    regulations since have been amended and now include the more
    accepted term "intellectual disability."    Those regulations
    define "intellectual disability" in identical terms as the term
    "mental retardation" previously had been defined.     Where "mental
    retardation"13 is itself a commonly understood term, see id. at
    96, and where it is synonymous with "intellectual disability,"
    the latter also is a commonly understood term.
    In addition to the regulatory definition, the Diagnostic
    and Statistical Manual of Mental Disorders defines "intellectual
    disability" as "a disorder with onset during the developmental
    period that includes both intellectual and adaptive functioning
    disability' synonymous with mental retardation . . . ."
    Executive Order No. 521 (Mar. 31, 2010).
    13
    The 2012 regulations also noted that the substituted
    definition is consistent with the standard used in the eleventh
    edition of American Association of Intellectual Disabilities:
    Definition, Classification, and Systems of Supports (2010). 115
    Code Mass. Regs. § 2.01 (2012).
    15
    deficits in conceptual, social, and practical domains."14
    American Psychiatric Association, Diagnostic and Statistical
    Manual of Mental Disorders 33 (5th ed. 2013).     These definitions
    maintain the core concept that an intellectual disability
    consists of intellectual limitations and affects adaptive
    behaviors.     In this case, no one questioned whether Amy in fact
    had an intellectual disability.     The defendant himself
    acknowledged on direct examination that he knew Amy had
    "intellectual disabilities" and the record demonstrates that it
    was generally understood that Amy had an intellectual
    disability.    We conclude that the term "intellectual disability"
    has an accepted and well understood meaning, and applying that
    meaning to the defendant does not render the statute
    unconstitutionally vague.
    The defendant also argues the judge's instructions defined
    the term "intellectual disability" in a manner that was
    erroneous.15    The judge's instruction incorporated the definition
    14
    The American Association on Intellectual and
    Developmental Disabilities defines "intellectual disability" as
    "a disability characterized by significant limitations both in
    intellectual functioning . . . and in adaptive behavior." See
    American Association on Intellectual and Development
    Disabilities, Frequently Asked Questions on Intellectual
    Disability, http://aaidd.org/intellectual-disability/definition/
    faqs-on-intellectual-disability#.VfxrPVKFNaR [http://perma.cc/
    G6CS-5V5G].
    15
    The defendant does not allege error for the remaining
    portions of the jury instructions. The trial judge instructed
    16
    of "person with disability" from G. L. c. 265, § 13K, which
    proscribes assault and battery on an elderly or disabled person.
    The defendant contends that this definition did not cure the
    problem of vagueness in § 13F, and it permitted the jury to
    convict him under § 13K.   The defendant did not object to the
    trial judge's instructions.   We review the instruction under the
    standard of a substantial risk of a miscarriage of justice.      See
    Commonwealth v. Ford, 
    424 Mass. 709
    , 712 (1997); Commonwealth v.
    Mitchell, 
    67 Mass. App. Ct. 556
    , 565 (2006).   We look to the
    jury instructions as a whole in order to determine if there was
    a substantial risk of a miscarriage of justice.   See
    Commonwealth v. Shea, 
    467 Mass. 788
    , 796 (2014); Commonwealth v.
    Whitman, 
    430 Mass. 746
    , 755 (2000).   We agree that the trial
    judge's jury instructions regarding the definition of
    "intellectual disability" were erroneous.   However, the error
    did not create a substantial risk of a miscarriage of justice.
    General Laws c. 265, § 13K, defines "person with
    disability" as "a person with a permanent or long-term physical
    or mental impairment that prevents or restricts the individual's
    ability to provide for his or her own care or protection."      The
    definition of "person with disability" in § 13K encompasses a
    the jury that "intellectual disability is a permanent or long-
    term mental impairment that prevents or restricts the
    individual's ability to provide for her own care or protection."
    17
    greater variety of disabilities than does § 13F, including
    Alzheimer's disease and a number of other disabilities.
    However, it also includes "intellectual disability" under § 13F.
    The erroneous jury instruction did not create a substantial
    risk of a miscarriage of justice because the disability that was
    the focus of the evidence at trial was an intellectual
    disability.   Amy's condition met the definition from § 13K that
    the judge used to instruct the jury, and it is highly unlikely
    that the jury would have based its verdict on any other
    disability, such as Alzheimer's disease.    We conclude that the
    defendant has failed to show the existence of a substantial risk
    of a miscarriage of justice.    In future trials under § 13F, it
    would be appropriate to instruct a jury with the definition of
    "intellectual disability" as used in the regulations of the
    department.   That definition is consistent with other
    organizations' definition of "intellectual disability" and is
    well understood.
    b.     Motion for required findings of not guilty.   i.
    Consent.   The defendant argues that his trial and posttrial
    motions for required findings of not guilty should have been
    granted as to the indictment under G. L. c. 265, § 13F,
    concerning the incident on September 11, 2011, because the
    Commonwealth presented insufficient evidence of lack of consent.
    The Commonwealth argues that the judge correctly denied the
    18
    defendant's motions because there was sufficient evidence that
    the defendant intended for Amy to touch his penis and that the
    combination of her intellectual disability and the significant
    age difference between them is sufficient to prove Amy did not
    consent to the touching on that date.   When deciding a motion
    for a required finding of not guilty, we view the evidence in
    the light most favorable to the Commonwealth.   Commonwealth v.
    Latimore, 
    378 Mass. 671
    , 676-677 (1979).   We must determine
    whether "any rational trier of fact could have found the
    essential elements of the crime beyond a reasonable doubt."
    Commonwealth v. Cohen (No. 1), 
    456 Mass. 94
    , 120 (2010), quoting
    Latimore, 
    supra at 677
    .
    The elements of an indecent assault and battery on a person
    with an intellectual disability include lack of consent, and the
    Commonwealth bears the burden of production and persuasion on
    the issue.   See Commonwealth v. Portonova, 
    69 Mass. App. Ct. 905
    , 906 (2007).   The element of lack of consent in a
    prosecution for indecent assault and battery is the same as in a
    prosecution for rape.16   See Commonwealth v. LeBlanc, 
    456 Mass. 16
    Capacity to consent may be an issue in such cases. "In
    order to give consent a person must . . . have the capacity to
    do so." Commonwealth v. Burke, 
    390 Mass. 480
    , 484 (1983).
    Capacity to consent can be affected by a number of different
    factors, including intoxication, consumption of drugs, sleep,
    unconsciousness, head injury, and intellectual disability. See
    Commonwealth v. Blache, 
    450 Mass. 583
    , 590 n.10 (2008). The
    judge did not instruct the jury on lack of capacity to consent,
    19
    135, 138 (2010); Commonwealth v. Simcock, 
    31 Mass. App. Ct. 184
    ,
    188 (1991).    In this case, the Commonwealth presented sufficient
    evidence from which the jury could find that, in the totality of
    the circumstances, including Amy's intellectual disability, Amy
    did not consent.
    The evidence of Amy's intellectual disability was
    prevalent.    Amy's mother testified that she was diagnosed with
    "slow learning, special needs" when she was eight months old.
    She also revealed that Amy was missing the left half of her
    cerebellum.   Amy read at a third or fourth grade level and her
    mother described her age range relative to over-all mental
    capacity as spanning from that of a young age to that of a
    teenager in regards to her moods.   State police Trooper Dale
    Gero, the officer who investigated the incidents, testified that
    Amy appeared to act like a five to seven year old child.17    The
    mother's boy friend described Amy as "basically" a child and as
    "a woman with a child's mind."    Amy had an IQ of forty-seven and
    lacked the mental capabilities to complete a high school
    thereby effectively removing the possibility of a verdict on
    that evidence alone. He only instructed on lack of consent, but
    told the jury that they could consider Amy's state of mind on
    this element of the Commonwealth's proof.
    17
    State police Trooper Dale Gero based his opinion on his
    observation of Amy and his experience of having a five year old
    daughter of his own.
    20
    program.18    Her mother testified that Amy's mental disability is
    classified as mental retardation.    Amy was not allowed to go
    shopping by herself.    Additionally, the jury were able to
    observe Amy testify and assess the scope of her intellectual
    disability.    See Fuller, 66 Mass. App. Ct. at 90;
    Aitahmedlamara, 63 Mass. App. Ct. at 77-78 ("the victim
    testified extensively at trial, and the jury were able from
    their observations of her to assess both the question of her
    mental retardation and the likelihood that the defendant was
    aware of it").    While testifying, Amy required a number of
    breaks.
    There was evidence from which the jury could have found
    that Amy perceived that the defendant had authority over her
    because of his friendship with her family, "the considerable age
    disparity between [them,] . . . and an obvious disparity in
    experience and sophistication."     Commonwealth v. Shore, 
    65 Mass. App. Ct. 430
    , 432 (2006), quoting Commonwealth v. Castillo, 
    55 Mass. App. Ct. 563
    , 567 (2002).    There was evidence of prior
    unwanted sexual touching.    With respect to the incidents before
    September 11, 2011, Amy testified that she felt uncomfortable,
    and that the defendant told her to keep these incidents secret
    because he could get in trouble.    The jury reasonably could have
    18
    Amy obtained a certificate of attendance in 2010 when she
    was twenty-two years old.
    21
    found that, in the totality of the circumstances, including
    Amy's intellectual disability, she did not consent to the sexual
    touching.
    The fact that the defendant did not do the touching on this
    occasion did not preclude the jury from convicting him of
    indecent assault and battery on a person with an intellectual
    disability.   See Portonova, 69 Mass. App. Ct. at 905-906
    (reiterating our case law does not require defendant to do
    touching); Commonwealth v. Davidson, 
    68 Mass. App. Ct. 72
    , 73,
    75-76 (2007) (defendant convicted of indecent assault and
    battery on child under age of fourteen, G. L. c. 265, § 13B,
    when victim touched his penis and rubbed his "private" with her
    nose).    "The gravity of the conduct rises to the level which
    the[] statute[] [was] designed to prohibit."     Davidson, supra at
    75-76, quoting Commonwealth v. Nuby, 
    32 Mass. App. Ct. 360
    , 362
    (1992).
    ii.     Ex post facto law.   The defendant further argues that
    his motions for required findings of not guilty as to the four
    remaining indictments charging him with violations of § 13F
    should have been allowed because the Commonwealth presented
    insufficient evidence that these acts occurred after the 2010
    amendments to § 13F.    He further contends that as a result, his
    convictions violate the prohibitions against ex post facto laws
    under art. I, § 10, of the United States Constitution and art.
    22
    24 of the Massachusetts Declaration of Rights.     Specifically, he
    asserts that as a matter of law he could not have been convicted
    under § 13F, based on conduct that occurred prior to November 2,
    2010, when the statutory amendments took effect.     As discussed
    above, the substitution of the term "intellectual disability"
    for "mental retardation" did not change the substance of the
    statute.    The two terms are synonymous.   Therefore, the
    defendant's conduct was illegal prior to the 2010 amendments as
    well as after.    The statutory amendments had no retrospective
    effect that operated to the detriment of the defendant.      See
    Commonwealth v. Fuller, 
    421 Mass. 400
    , 408 (1995).     The evidence
    was sufficient, and the convictions do not violate the ex post
    facto prohibitions of the Federal or Massachusetts
    Constitutions.
    c.     Ineffective assistance of counsel.   The defendant
    argues that the judge erred in the denial of his motion for a
    new trial, which claimed that the defendant received ineffective
    assistance of counsel.    Specifically, the defendant asserts that
    counsel failed to move to dismiss the complaint on the grounds
    that G. L. c. 265, § 13F, was void for vagueness, failed to
    argue effectively that the Commonwealth's evidence was
    insufficient, and failed to request jury instructions that the
    defendant could not be convicted based on acts occurring prior
    to November 2, 2010, the effective date of the statutory
    23
    amendments.    We conclude that the defendant's counsel was not
    ineffective because such motions and arguments would not have
    succeeded.
    When analyzing an ineffective assistance of counsel claim,
    a defendant must first show that "there has been serious
    incompetency, inefficiency, or inattention of counsel" and
    behavior that falls "measurably below that which might be
    expected from an ordinary fallible lawyer."    Commonwealth v.
    Saferian, 
    366 Mass. 89
    , 96 (1974).    If the first prong is
    satisfied, then a defendant must show "whether it has likely
    deprived the defendant of an otherwise available, substantial
    ground of defence."     
    Id.
    For the reasons stated above, the defendant's trial counsel
    would not have been successful on a motion to dismiss on the
    ground that G. L. c. 265, § 13F, is void for vagueness.
    Commonwealth v. Conceicao, 
    388 Mass. 255
    , 264 (1983) ("It is not
    ineffective assistance of counsel when trial counsel declines to
    file a motion with a minimal chance of success").    For the
    reasons stated above, the defendant's other arguments also would
    not have been successful.
    3.      Motion for required finding of not guilty -- indecent
    exposure.    The defendant asserts error in the denial of his
    motion for a required finding on not guilty as to the indictment
    alleging indecent exposure.    Specifically, he argues that the
    24
    Commonwealth presented insufficient evidence that he
    intentionally exposed his genitals to Amy and that Amy was
    offended by the exposure.19   The Commonwealth argues that it
    presented sufficient evidence on the charge of indecent exposure
    because a reasonable person in Amy's position would have been
    offended by the defendant's act of forcing Amy's head down
    toward his penis for the purpose of placing her mouth on his
    penis.    We agree with the Commonwealth.
    Indecent exposure requires proof of an "intentional act of
    lewd exposure, offensive to one or more persons."   Commonwealth
    v. Swan, 
    73 Mass. App. Ct. 258
    , 261 (2008), quoting Commonwealth
    v. Broadland, 
    315 Mass. 20
    , 21-22 (1943).   The exposure of one's
    genitalia is a necessary element to indecent exposure.
    Commonwealth v. Arthur, 
    420 Mass. 535
    , 540-541 (1995).
    Offensive behavior are acts "that cause 'displeasure, anger or
    resentment'" and are "repugnant to the prevailing sense of what
    is decent or moral."    Commonwealth v. Sullivan, 
    469 Mass. 621
    ,
    625 (2014), quoting Commonwealth v. Cahill, 
    446 Mass. 778
    , 781
    (2006).
    19
    The defendant argues that the Commonwealth presented two
    independent factual bases for indecent exposure. However, this
    is unclear because the Commonwealth only discusses the incident
    where the defendant forced Amy's head down to his penis. The
    Commonwealth's argument that sufficient evidence was presented
    to convict on the charge of indecent exposure discussed only
    that one incident.
    25
    Amy testified that one night near the defendant's camper,
    the defendant put his hand behind her head and forced it down
    toward his "private part."     When asked whether "boys pee from
    their private part," Amy answered, "Yes."     Amy first testified
    that it was so dark out that she could not even see his "private
    part."   However, when asked whether his "private part" was
    inside or outside of his pants, she responded that it was
    outside of his pants.    She could not remember what his "private
    part" looked like.   Amy testified that the defendant wanted her
    to put her mouth on his "private part" but she told him no and
    that she wanted to go inside.
    The defendant argues that there is insufficient evidence
    that he intentionally exposed his genitals to Amy.     He argues
    that Amy unambiguously testified that it was too dark out to see
    the defendant's penis.     Although Amy did testify that it was so
    dark out that she could not even see his "private parts," she
    also testified that his "private part" was outside of his pants.
    Conflicting inferences that can be drawn from the evidence are
    for the jury to resolve.     Commonwealth v. Miranda, 
    458 Mass. 100
    , 113 (2010), cert. denied, 
    132 S. Ct. 548
     (2011).     "When
    assessing the sufficiency of the evidence, we resolve issues of
    credibility in favor of the Commonwealth . . . ."     Commonwealth
    v. James, 
    424 Mass. 770
    , 785 (1997).     The jury reasonably could
    infer (as did Amy when she testified that the defendant wanted
    26
    her to effect oral sex on him) that the defendant exposed his
    penis and pushed her head down toward his penis because it was
    his intention that Amy effect fellatio.     We conclude that the
    Commonwealth presented sufficient evidence for a reasonable
    trier of fact to find that the defendant exposed his penis to
    Amy.
    The defendant further argues that Amy never testified that
    she was offended any of the times that she saw the defendant's
    penis.20    Although Amy never specifically testified that she was
    offended by the defendant's actions, she did describe the
    defendant's act of grabbing the back of her head and forcing her
    head down toward his penis.     She testified that she told him
    that she did not want to do that and that she wanted to go
    inside.     A jury rationally could infer that by saying no and by
    expressing her desire to detach herself from the situation, she
    felt "displeasure" toward defendant's conduct.    See Sullivan,
    469 Mass. at 625, quoting Cahill, 446 Mass. at 781.     We are
    satisfied that the Commonwealth presented sufficient evidence
    from which a reasonable trier of fact could determine that Amy
    was offended by the defendant's conduct.
    20
    The defendant is unclear in his brief as to what
    incidents he is referring; however, he argues that the
    Commonwealth must prove beyond a reasonable doubt that the
    defendant exposed his genitals and on the same occasion offended
    the victim. We will limit our discussion to whether Amy was
    offended during the incident where the defendant forced her head
    down.
    27
    4.    Motion for required finding of not guilty -- accosting
    or annoying a person of the opposite sex.   The defendant
    contends that the judge erred by not granting his motion for a
    required finding as to the indictment alleging accosting or
    annoying a person of the opposite sex.   Specifically, he argues
    that the Commonwealth presented insufficient evidence to
    establish that the defendant's conduct was disorderly.      The
    Commonwealth responds that the defendant's act of forcing Amy's
    head toward his penis for the purpose of oral sex was offensive
    and disorderly conduct.
    General Laws c. 272, § 53, states that "persons who with
    offensive and disorderly acts or language accost or annoy
    another person . . . shall be punished."    The statute requires
    proof beyond a reasonable doubt that the act was both offensive
    and disorderly.   Commonwealth v. Lombard, 
    321 Mass. 294
    , 296
    (1947).   The requirements of being offensive and being
    disorderly are distinct from one another.    
    Id.
       The Commonwealth
    also must prove that the acts were offensive and disorderly to a
    reasonable person, applying an objective standard.    Sullivan,
    469 Mass. at 625; Cahill, 446 Mass. at 781, citing Chou, 433
    Mass. at 235.
    Offensive acts, as discussed above "cause a complainant to
    feel displeasure, anger, resentment, or the like, and such acts
    or language would be considered indecent or immoral by a
    28
    reasonable person."   Sullivan, 469 Mass. at 625.    Offensive acts
    also require "proof of sexual conduct or language, either
    explicit or implicit."     Id. at 626.   We have determined that
    explicit sexual conduct is self-explanatory and implicit sexual
    conduct or language means conduct or language, "which a
    reasonable person would construe as having sexual connotations."
    Id.
    Disorderly conduct is distinct from offensive conduct.
    Lombard, 321 Mass. at 296.     Disorderly acts "are those that
    involve fighting or threatening, violent or tumultuous behavior,
    or that create a hazardous or physically offensive condition for
    no legitimate purpose of the actor, whether the resulting harm
    is suffered in public by the public or in private by an
    individual."   Chou, 433 Mass. at 233.    To be physically
    offensive, a defendant must act in such a way that a reasonable
    person would fear "imminent physical harm."     Sullivan, 469 Mass.
    at 627.   Context is taken into account when analyzing whether
    acts are physically offensive or threatening.     Id. at 628,
    quoting Commonwealth v. Ramirez, 
    69 Mass. App. Ct. 9
    , 16 (2007)
    ("context is critical").    The jury could have found that the
    defendant's act of forcing Amy's head down toward his penis
    caused her to fear imminent physical harm.
    The incident in question here is, again, the defendant's
    act of forcing Amy's head down toward his penis.     The defendant
    29
    argues that the evidence the Commonwealth presented demonstrates
    that the defendant's actions were brief and minimal and fall
    outside the spectrum of that which is offensive.    We disagree.
    As discussed above, the defendant's act of forcing Amy's head
    down for the purpose of engaging in oral sex was offensive.     As
    the defendant was forcing her head down, Amy told him no and
    that she wanted to go back inside.    A reasonable person would
    infer from Amy's inclination to go back inside that at the very
    least she felt "displeasure," and in fact was offended by the
    conduct.   Sullivan, 469 Mass. at 625.   The act of forcing Amy's
    head down toward his penis also can be construed as a physically
    offensive condition.    Viewing the events in context, Amy
    reasonably could have feared imminent physical harm.    The
    incident occurred outside, and at night, near the defendant's
    camper.    Amy is intellectually disabled and significantly
    younger than the defendant.    This was not just one isolated
    incident of the defendant making sexual advances toward Amy.
    Amy testified to various times where he touched her breasts and
    her vagina.    Viewing the defendant's actions within this context
    could place a reasonable person in fear of imminent physical
    harm.   Additionally, forcing a person's head down toward one's
    penis to engage in sexual conduct could place a reasonable
    person in fear of imminent physical harm.    We conclude that the
    Commonwealth provided sufficient evidence that the defendant's
    30
    behavior was disorderly, and that the motion for a required
    finding of not guilty properly was denied.
    5.   Conclusion.   For the foregoing reasons, we determine
    G. L. c. 265, § 13F, as amended through St. 2010, c. 239, §§ 71-
    72, to be constitutional, and we affirm the defendant's
    convictions of indecent assault and battery on a person with an
    intellectual disability, indecent exposure, and accosting or
    annoying a person of the opposite sex.   We also affirm the
    orders denying the defendant's motions for a new trial and for
    required findings of not guilty.
    So ordered.