United States v. Ramon Aguirre , 368 F. App'x 979 ( 2010 )


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  •                                                          [DO NOT PUBLISH]
    IN THE UNITED STATES COURT OF APPEALS
    FOR THE ELEVENTH CIRCUIT
    ________________________          FILED
    U.S. COURT OF APPEALS
    No. 09-13731         ELEVENTH CIRCUIT
    MARCH 18, 2010
    Non-Argument Calendar
    JOHN LEY
    ________________________
    CLERK
    D. C. Docket No. 08-00053-CR-1
    UNITED STATES OF AMERICA,
    Plaintiff-Appellee,
    versus
    RAMON AGUIRRE,
    Defendant-Appellant.
    ________________________
    Appeal from the United States District Court
    for the Southern District of Georgia
    _________________________
    (March 18, 2010)
    Before TJOFLAT, WILSON and FAY, Circuit Judges.
    PER CURIAM:
    Ramon Aguirre appeals from his convictions and sentences for tax evasion,
    in violation of 
    26 U.S.C. § 7201
    . On appeal, he raises various arguments related to
    the district court’s denial of his motion to suppress, its evidentiary rulings, and his
    sentencing. Aguirre contends that the court erred in denying his motion to
    suppress because the warrant authorizing a search of New Era Tax Service
    (“NETS”) was overly broad on its face, and the Internal Revenue Service (“IRS”)
    agents who searched his office exceeded the scope of the warrant. Addressing the
    court’s evidentiary rulings, Aguirre argues that the court abused its discretion
    under Fed.R.Evid. 404(b) by: (1) denying his motion to exclude evidence that he
    defrauded the Department of Veterans Affairs (“VA”), thus overruling his
    objection that the government’s notice of its intent to introduce this extrinsic
    evidence was untimely; and (2) prohibiting him from introducing evidence related
    to Jose Cruzastol’s preparation of fraudulent tax returns for various individuals.
    He also contends that the court infringed on his Sixth Amendment right to present
    a defense by barring his proposed evidence concerning Cruzastol.
    Regarding his sentence, Aguirre argues that the district court clearly erred in
    calculating the tax loss amount at sentencing by holding him responsible for Rabel
    General Service’s (“RGS”) corporate tax liability, because it failed to make factual
    findings in support of its determination of the amount of RGS’s tax liability.
    2
    Finally, Aguirre asserts that the court erred by increasing his offense level under
    U.S.S.G. § 2T1.1(b)(1) based on his illegal receipt of VA benefits. In connection
    with this argument, he asserts that, while this guideline may apply where a
    defendant fails to report income from an illegal kickback scheme to the IRS, it
    does not apply where a defendant conceals income from the VA. He further argues
    that this increase to his offense level was inappropriate because his trial focused on
    his failure to report his income to the IRS, not VA fraud.
    For the reasons set forth below, we affirm in part, and remand in part for the
    limited purpose of permitting the district court to make factual findings in support
    of its determination of the amount of RGS’s corporate tax liability.
    I.
    A federal grand jury indicted Aguirre for the following offenses: (1) falsely
    reporting that he and his wife had no taxable income for 2001 (“Count 1”);
    (2) failing to file a personal income tax return for 2002 (“Count 2”); (3) failing to
    file a personal income tax return for 2003 (“Count 3”); and (4) failing to file a
    personal income tax return for 2004 (“Count 4”), all in violation of 
    26 U.S.C. § 7201
    . (R1-1).
    The magistrate judge entered a scheduling order, which provided that, under
    the court’s local rules, the government should provide Aguirre with written notice
    3
    of any evidence it intended to admit under Fed.R.Evid. 404(b) within 20 days after
    arraignment. The order specified that any notice of 404(b) evidence should
    “outline in general form the evidence to be offered” and state the purpose for
    which it was offered. Aguirre was arraigned on April 28, 2008.
    Shortly after the magistrate entered the scheduling order, Aguirre filed a
    written request that the government provide him with notice of any evidence of
    previous crimes or bad acts that it intended to present at trial. On May 27, 2008,
    the government responded, stating that it intended to introduce, under either Rule
    404(b) or as evidence inextricably intertwined with the charged offenses, “any
    evidence now known or later learned regarding the defendant’s prior frauds against
    the government.”
    Aguirre filed a motion to suppress, explaining that, on August 18, 2005, IRS
    Agent Stephanie Huebner obtained a warrant to search the “office and storage
    areas” of NETS, which was formerly known as J.R. Cruz Tax Service (“JRCTS”).
    He further explained that Jose Cruzastol owned this tax preparation service, which
    was located at 3107 Old McDuffie Road, Augusta, Georgia. Aguirre stated that he
    owned an automotive repair service, RGS, which was located next to NETS at
    3109 Old McDuffie Road. Aguirre alleged that, despite the fact that Huebner was
    aware that he maintained a separate office at 3107 Old McDuffie Road, she failed
    4
    to specify this fact in the warrant, and, on August 19, IRS agents searched the
    entirety of the premises at 3107 Old McDuffie Road, including his office. Aguirre
    arrived at the location during the search, and informed the agents that his office
    was used only for RGS business. The agents, however, refused to discontinue their
    search, and seized documents which, on their face, pertained to RGS. Almost two
    months after the search, IRS agents informed Aguirre that he was the subject of a
    criminal investigation. On November 3, 2005, March 14, 2007, and April 10,
    2007, Aguirre met with IRS agents and answered their questions about RGS,
    NETS, and his personal financial information.
    Aguirre argued that the IRS agents who conducted the search violated his
    Fourth Amendment rights, and requested that the court suppress any evidence and
    statements obtained as a result of the search. Aguirre asserted that the agents
    exceeded the scope of the warrant by searching his office and seizing RGS
    documents. He argued that he had placed the agents on notice that his office was
    used only for RGS business, and that the agents were required to discontinue their
    search as soon as he provided them with this notice. Aguirre also argued that the
    statements he made during his subsequent three interviews with IRS agents should
    be suppressed because these interviews were based on the fruits of the illegal
    search. He alleged that he became the subject of a personal tax fraud investigation
    5
    based on the documents that IRS agents seized during the August 19 search.
    Aguirre attached a copy of the search warrant and Huebner’s supporting
    affidavit to his motion. The warrant authorized IRS agents to search the:
    Office and storage areas of the business known as New Era Tax
    Service fka J.R. Cruz Tax Service
    3107 Old McDuffie Road
    Augusta, Georgia 30906
    The warrant listed the items to be seized as “contraband, fruits and
    instrumentalities and evidence of the commission of the crime of a violation of 
    18 U.S.C. § 371
     and 
    26 U.S.C. §§ 7206
    (1) and 7206(2) as described in the attached
    affidavit.”
    The warrant was supported by an affidavit executed by Huebner. In her
    affidavit, Huebner alleged that the IRS had been conducting surveillance on NETS,
    and that the results of this surveillance gave them reason to believe that Cruzastol
    was preparing client tax returns that grossly exaggerated business expenses and
    charitable deductions. Aguirre had prepared a fraudulent tax return for at least one
    NETS client, and, along with Cruzastol, had attended a meeting with an IRS officer
    in order to discuss the IRS’s concerns about NETS’s tax filings. Thus, Huebner
    believed that Cruzastol filed false tax returns for NETS clients, and that Aguirre
    was a NETS employee. Huebner stated that Aguirre’s hardware, software, and
    documents likely contained evidence of tax fraud because he worked at NETS and
    6
    had prepared a fraudulent tax return for at least one NETS client. Huebner
    included NETS and JRCTS client documents in her list of items to be seized.
    The magistrate conducted a hearing regarding Aguirre’s motion to suppress.
    At this hearing, Huebner testified that, when she and other IRS agents arrived at
    NETS offices to conduct the search on August 19, 2005, the door to Aguirre’s
    office was unlocked. Although the door to Aguirre’s office had a picture of a car
    on it, it did not bear any signs or lettering with the words “Rabel General Services”
    or “RGS.” Aguirre arrived at NETS during the course of the search, and told the
    agents that they should not be inside of his office because he used it to conduct
    business on behalf of RGS only. In response to Aguirre’s statement, Huebner
    asked the other IRS agents whether there was an RGS sign on Aguirre’s door, and
    the agents informed her that there was no such sign, and that they had found
    numerous documents related to NETS business inside of Aguirre’s office.
    Huebner ordered the agents to continue the search. In addition, Huebner testified
    that RGS was a tax client of NETS and JRCTS.
    The magistrate entered a report and recommendation, recommending that the
    court deny Aguirre’s motion to suppress. The magistrate found that, at the time of
    the search, Aguirre’s office was unlocked and was not labeled as an RGS office.
    The magistrate further found that the IRS agents did not exceed the scope of the
    7
    warrant because Aguirre’s office fell within the parameters of the warrant. The
    magistrate reasoned that the warrant authorized a search of NETS, and Aguirre
    assisted with NETS business. The magistrate further found that the agents did not
    exceed the scope of the warrant because there was no evidence that the agents
    should have been on notice that 3107 Old McDuffie Road contained RGS offices
    or property. In support of this finding, the magistrate noted that agents found
    numerous NETS documents in Aguirre’s office. Addressing Aguirre’s argument
    that IRS agents impermissibly seized documents related only to RGS, the
    magistrate found that this seizure was permissible because RGS was a client of
    NETS. The magistrate concluded that, because the August 19, 2005 search was not
    illegal, Aguirre’s statements to IRS agents during his November 2005, March
    2007, and April 2007 interviews should not be suppressed as fruits of an illegal
    search. The court adopted the magistrate’s report and recommendation over
    Aguirre’s objections.
    On January 8, 2009, which was several days before trial, Aguirre filed a
    motion in limine, informing the court that he had just received notice that the
    government intended to introduce documents showing that he had illegally
    received VA disability benefits. He argued that this evidence should be excluded
    under Fed.R.Evid. 404(b) and 403. He asserted that the government’s disclosure
    8
    of the VA documents occurred only five calendar days and two business days
    before trial, thus depriving him of the ability to meaningfully defend against the
    evidence. He also asserted that this disclosure violated the magistrate’s scheduling
    order. Aguirre noted, however, that, in its discovery, the government had disclosed
    to him an IRS memorandum in which Huebner related that she had contacted the
    VA regarding Aguirre’s disability status.
    Aguirre attached a copy of Huebner’s memorandum to his motion in limine.
    In the memorandum, which was prepared in September 2007, Huebner averred that
    she had called Kathy Hersey, a special agent employed by the VA Office of the
    Inspector General, on June 8, 2007. In response to Huebner’s questions regarding
    Aguirre’s disability status, Hersey stated that Aguirre was awarded 100% disability
    status in 1999 based on his representation that he could not work due to a
    disability. Aguirre had informed the VA that he had sold his automotive repair
    business, and did not report to the VA that he subsequently found employment
    elsewhere. Huebner stated that she asked for copies of Aguirre’s VA documents,
    but “Hersey was reluctant to provide the documents since [the] VA was not
    officially involved in the investigation.”
    Aguirre also attached copies of the VA documents that the government had
    recently provided to him. These documents included, among other things:
    9
    (1) three letters from the VA to Aguirre, dated 2002, 2003, and 2004, asking that
    Aguirre inform the VA if he had found employment or had become self-employed,
    as his employment income could result in a decrease to his disability
    compensation; and (2) a letter from the VA to Aguirre, dated 1999, informing
    Aguirre that he was entitled to disability compensation in light of the fact that he
    had sold his business and was unable to secure other employment.
    The government also filed a motion in limine, requesting that, pursuant to
    Fed.R.Evid. 609, Aguirre be prohibited from cross-examining any government
    witness concerning the witness’s prior bad acts or specific instances of misconduct,
    unless the matter involved dishonesty.
    Immediately before the trial began, the government addressed Aguirre’s
    motion in limine concerning the VA documents. The government stated that the
    VA had initially refused to turn Aguirre’s documents over to Huebner, and that it
    had provided Huebner’s memorandum about her conversation with Hersey to
    Aguirre shortly after his arraignment. The government explained that it did not
    obtain the VA records until Aguirre requested a document that Huebner had
    referenced in her memorandum, and the government responded to Aguirre’s
    request by issuing a subpoena for the VA records. The government averred that it
    forwarded the documents to Aguirre immediately after it received them. The
    10
    government conceded that the evidence of Aguirre’s VA fraud was extrinsic, but
    asserted that it should be admitted because it provided a motive for Aguirre’s
    failure to report his employment income to the IRS. The court deferred its ruling
    on the matter.
    During Aguirre’s trial, Huebner testified that she investigated Aguirre for tax
    evasion for the years 2001-2004. Huebner identified certain documents as
    financial statements that Aguirre had provided to banks between 2001 and 2004 in
    order to obtain loans or other lines of credit. These documents generally reflected
    that Aguirre received at least $80,000 in annual income from his employment with
    RGS, and that he had over $1,000,000 in assets. Huebner also reviewed Aguirre’s
    IRS records for 2001 to 2004, which reflected that Aguirre reported that he did not
    receive any employment income in 2001. These documents also reflected that
    Aguirre did not file a personal income tax return for tax years 2002, 2003, and
    2004. As part of her investigation, she met with Aguirre on several occasions to
    review his finances. During these meetings, they reviewed Aguirre’s and RGS’s
    transactions, and Aguirre would classify each transaction as a business or personal
    expense. Based on this process, Huebner was able to calculate Aguirre’s
    unreported taxable income for 2001-04. During one of these meetings, Aguirre
    told Huebner that he did not want to report his income in his tax returns because it
    11
    would affect his VA disability payments.
    After the conclusion of Huebner’s testimony on direct examination, Aguirre
    addressed the government’s motion in limine to prohibit him from questioning
    government witnesses about their previous bad acts. Aguirre argued that, in the
    event that the government called Cruzastol as a witness, he should be able to
    question Cruzastol regarding the fact that he falsified information such as
    deductions on client tax returns, because these were acts of dishonesty. He
    asserted that evidence that Cruzastol prepared fraudulent tax returns was “at the
    heart of [the] defense” because he had relied on Cruzastol as a tax preparer. He
    also argued that the evidence was admissible under Fed.R.Evid. 406 as evidence of
    Cruzastol’s business habits. Aguirre stated that he also wished to present the
    testimony of Lisa Owens Smith, who would testify that Cruzastol forged her name
    to fraudulent tax returns.
    The court determined that Fed.R.Evid. 404 and 403 prohibited the defense
    from presenting evidence that Cruzastol filed fraudulent tax returns for various
    individuals. The court reasoned that the defense sought to show that Cruzastol had
    a particular character trait, and that he must have acted in conformity with this trait
    when he handled Aguirre’s tax returns. The court further found that this evidence
    regarding Cruzastol was extrinsic. The court explained that it did not want to
    12
    suggest to the jury that it should compare Aguirre’s culpability to Cruzastol’s
    culpability, or that it should consider whether Aguirre, rather than Cruzastol, was
    properly prosecuted by the U.S. Attorney’s Office. Thus, the court determined
    that, to the extent the government’s motion in limine sought to exclude this
    evidence, it was granted.
    Addressing his motion in limine to exclude the evidence of his VA disability
    benefits, Aguirre argued that this was extrinsic evidence of which the government
    had failed to provide timely notice, as required by Rule 404(b). Aguirre argued
    that, even if Hersey had refused to give Aguirre’s VA documents to Huebner, the
    government could have subpoenaed the VA documents. Aguirre further argued
    that, in any event, these documents constituted extrinsic evidence that could cause
    the jury to conclude that he had defrauded the VA.
    The court stated that it had “some concern” that this evidence could confuse
    the jury or prejudice Aguirre. It also expressed its concern with the timeliness of
    the government’s disclosure, although it credited the government’s assertion that it
    did not receive the VA documents until shortly before the trial began. With these
    concerns in mind, the court ruled that the government could present only the VA
    documents that reflected that: (1) Aguirre received 100% disability compensation
    from the VA; and (2) he was required to report any employment income to the VA,
    13
    as this could reduce his disability payments. The court reasoned that, “these
    documents flush out precisely what [Aguirre] had to lose if he filed a true tax
    return.” The court excluded the remaining VA documents, finding that the
    introduction of all of this evidence could confuse the jury and prejudice Aguirre by
    showing that he concealed another crime.
    When Huebner resumed her testimony on cross-examination, she testified
    that Cruzastol had prepared Aguirre’s personal tax returns during the 1990’s.
    During her interviews with Aguirre, Aguirre told her that Cruzastol had handled
    RGS’s corporate tax returns for tax years 2001-2004. Aguirre also told Huebner
    that he had not reviewed the 2001 tax return that Cruzastol prepared for RGS.
    Aguirre also told her that Cruzastol had prepared the financial statements that he
    had provided to banks between 2001 and 2004, and that he had not reviewed these
    statements after he received them from Cruzastol. Aguirre further stated to
    Huebner that he thought that Cruzastol had filed his tax returns for him.
    Brandon Barnes, a VA representative, testified that he had received a request
    to bring Aguirre’s VA records to court. Aguirre objected to this line of questioning
    and the introduction of documentary evidence from the VA, adopting his previous
    objections to this evidence under Rules 403 and 404(b). Barnes identified a
    document as a letter that had been sent from the VA to Aguirre in February 1999,
    14
    and the court admitted this document into evidence over Aguirre’s objection.
    Barnes explained that his letter notified Aguirre that his disability benefits had
    been modified, and that he now received disability benefits at a rate of 100%
    because he was unemployable. Barnes identified a set of three documents as letters
    that were sent from the VA to Aguirre, each of which instructed Aguirre to notify
    the VA if he received any income from employment, as this could decrease the
    amount of compensation he received. Aguirre had received these letters in 2002,
    2003, and 2004. The court admitted these letters into evidence over Aguirre’s
    objection.
    Shelley Berry testified that she had worked for Aguirre over the course of
    four years, beginning in 2003. She testified that Aguirre was the “head man” who
    ran NETS, and that Aguirre handled hiring decisions and writing checks on behalf
    of NETS. On cross-examination, Berry testified that Cruzastol had inflated the
    mileage reports on his clients’ tax returns. Cruzastol, along with another
    employee, had been responsible for preparing client tax returns. Cruzastol had
    prepared her personal tax returns in 2003 and 2004. Berry admitted that these tax
    returns falsely reported that she did not receive any income from RGS.
    After the conclusion of the government’s case, Aguirre presented the
    testimony of several witnesses in his defense. Aguirre did not testify in his own
    15
    defense, and none of the defense witnesses testified that Aguirre relied on
    Cruzastol to file his personal tax returns between 2001-2004. The jury convicted
    Aguirre of Counts 1-4.
    In preparing Aguirre’s presentence investigation report (“PSI”), the
    probation officer noted that, under U.S.S.G. § 2T1.1(a), the base offense level for
    tax evasion was based on the amount of tax loss caused by the defendant’s
    conduct. In calculating the tax loss, the probation officer found that Aguirre
    should be held responsible for both his personal tax liability and RGS’s corporate
    tax liability. The officer stated that, “RGS’s tax liability for tax years 2001
    through 2004 was $40,676; $100,708, $54,043, and $43,918, respectively.” The
    officer did not explain how he arrived at these figures. In addition, the officer
    noted that IRS officials determined that Aguirre had a personal tax liability of
    $108,204. The officer combined Aguirre’s personal and corporate tax liability to
    find that Aguirre’s tax loss amount was $347,549. Pursuant to the loss table set
    forth in U.S.S.G. § 2T4.1(G), the officer determined that this tax loss amount
    yielded a base offense level of 18.
    The probation officer then increased Aguirre’s offense level by two levels
    under § 2T1.1(b)(1), because the fact that he did not report income between 2001-
    2004 enabled him to receive VA disability benefits of approximately $15,708 each
    16
    year. The officer increased Aguirre’s offense level by another two levels under
    § 2T1.1(b)(2) based on his finding that Aguirre’s offense involved the use of
    sophisticated means. Accordingly, the officer determined that Aguirre’s total
    offense level was 22. Based on a total offense level of 22 and a criminal history
    category of I, the officer set Aguirre’s guideline range at 41 to 51 months’
    imprisonment.
    Aguirre filed written objections to the PSI. He objected to the two-level
    increase under § 2T1.1(b)(1) , arguing that his receipt of VA disability benefits was
    not at issue in this case, and that § 2T1.1(b)(1) typically applied in situations where
    a defendant had failed to report to the IRS income received from illegal kickbacks.
    Aguirre also objected to the probation officer’s determination that RGS’s corporate
    tax liability should be included in his tax loss amount under § 2T4.1, asserting that
    the government had failed to present any evidence establishing the amount of
    RGS’s tax liability.
    At sentencing, Aguirre reiterated his objection to the increase under
    § 2T1.1(b)(1), again arguing that this guideline was typically applied where a
    defendant failed to report income received from an illegal kickback scheme to the
    IRS, not where one failed to report income to the VA. The court reasoned that
    Aguirre’s receipt of VA disability benefits played a large role in his case because
    17
    his interest in these benefits motivated him to fail to report his employment
    income. The court also reasoned that it saw no difference between a defendant’s
    failure to report income to the IRS and a defendant’s failure to deal honestly with
    the VA.
    Aguirre also reiterated his objection to the PSI’s aggregation of his personal
    tax liability and RGS’s tax liability. The government responded that, at trial,
    Huebner had testified regarding Aguirre’s business and personal expenses. The
    government asserted that this testimony had reflected RGS’s income. Aguirre
    argued that no government agent had testified regarding RGS’s tax liability. The
    court found that the PSI appropriately aggregated Aguirre’s and RGS’s tax
    liabilities, but did not make any statement concerning the specific amount of
    corporate tax liability attributed to RGS.
    The court adopted the PSI’s factual findings and guideline applications, with
    the exception that it found that Aguirre’s conduct did not warrant a two-level
    increase for the use of sophisticated means under § 2T1.1(b)(2). Thus, the court
    determined that Aguirre had a total offense level of 20 which, when combined with
    his criminal history category of I, produced a guideline range of 33 to 41 months’
    imprisonment. The court sentenced Aguirre to a term of 36 months’ imprisonment.
    The court asked the parties if they had any objections to the sentence or the manner
    18
    in which it was calculated, and Aguirre stated that he adopted his previously filed
    written objections to the PSI.
    II.
    “We review a district court’s denial of a motion to suppress evidence as a
    mixed question of law and fact, with rulings of law reviewed de novo and findings
    of fact reviewed for clear error.” United States v. Lindsey, 
    482 F.3d 1285
    , 1290
    (11th Cir. 2007). In addition, we view the facts “in the light most favorable to the
    prevailing party in [the] district court.” 
    Id.
     Where a defendant fails to raise an
    argument before the district court, however, we will review the argument on appeal
    only for plain error. United States v. Martinelli, 
    454 F.3d 1300
    , 1310 (11th Cir.
    2006). In order to satisfy plain-error review, the defendant must demonstrate:
    “(1) error, (2) that is plain, and (3) that affects substantial rights.” 
    Id. at 1310-11
    (quotation omitted). “If all three conditions are met, an appellate court may then
    exercise its discretion to notice a forfeited error, but only if (4) the error seriously
    affects the fairness, integrity, or public reputation of judicial proceedings.” 
    Id. at 1311
     (quotation omitted).
    The Fourth Amendment guarantees “the right of the people to be secure in
    their persons, houses, papers, and effects against unreasonable searches and
    seizures.” U.S. Const. amend. IV. The Fourth Amendment’s Warrant Clause
    19
    requires that a search warrant must “particularly describ[e] the place to be
    searched, and the persons or things to be seized.” Id.; Maryland v. Garrison, 
    480 U.S. 79
    , 84, 
    107 S.Ct. 1013
    , 1016, 
    94 L.Ed.2d 72
     (1987). The purpose of this
    requirement is to prevent “wide-ranging exploratory searches.” Garrison, 
    480 U.S. at 84
    , 
    107 S.Ct. at 1016
    . Statements obtained from a defendant as a result of an
    illegal search may be suppressed as the fruit of an illegal search. See United States
    v. Terzado-Madruga, 
    897 F.2d 1099
    , 1112-13 (11th Cir. 1990).
    A warrant is sufficient where it describes “the place to be searched with
    sufficient particularity to direct the searcher, to confine his examination to the
    place described, and to advise those being searched of his authority.” United
    States v. Burke, 
    784 F.2d 1090
    , 1092 (11th Cir. 1986); see also Steele v. United
    States, 
    267 U.S. 498
    , 503, 
    45 S.Ct. 414
    , 416, 
    69 L.Ed. 757
     (1925) (holding that
    “[i]t is enough if the description is such that the officer with a search warrant can,
    with reasonable effort[,] ascertain and identify the place intended”). The
    particularity requirement allows a practical margin of flexibility, depending on the
    type of property to be seized, and “a description of property will be acceptable if it
    is as specific as the circumstances and nature of activity under investigation
    permit.” United States v. Wuagneux, 
    683 F.2d 1343
    , 1349 (11th Cir. 1982).
    In Garrison, the Supreme Court addressed a situation where the police
    20
    obtained a search warrant to search a third-floor apartment, believing that there
    was only a single apartment on the third floor. 
    480 U.S. at 80
    , 
    107 S.Ct. at 1014
    .
    In fact, there were two apartments on the third floor, and the police, in executing
    the search warrant, conducted a search of the second apartment before discovering
    that it was a separate apartment. 
    Id.
     Acknowledging that the search warrant’s
    description of the place to be searched was inaccurate, the Supreme Court
    nevertheless held that the warrant did not violate the particularity requirement
    because the affiant had reasonably believed that the third floor housed only one
    apartment. 
    Id.
     at 85-86 & n.10, 
    107 S.Ct. at
    1017 & n.10; see also United States v.
    Ofshe, 
    817 F.2d 1508
    , 1514 (11th Cir. 1987) (holding that a warrant was
    sufficiently particular, despite the fact that it failed to mention that one of the seven
    offices in a multiple-use commercial building was used for a separate business,
    because the officers reasonably believed that all of the offices inside the building
    were part of the business that was the target of the warrant). The Supreme Court
    also held, however, that the executing officers were “required to discontinue the
    search of [the defendant’s] apartment as soon as they discovered that there were
    two separate units on the third floor.” Garrison, 
    480 U.S. at 87
    , 
    107 S.Ct. at 1018
    .
    Although Aguirre argued to the district court that the IRS agents exceeded
    the scope of the warrant by searching his office and seizing RGS documents, he
    21
    did not argue that the warrant lacked sufficient particularity on its face. As a
    result, plain-error review applies to Aguirre’s argument that the warrant lacked
    sufficient particularity. The court did not err, let alone plainly err, in failing to find
    that the warrant lacked sufficient particularity because it failed to note that 3107
    Old McDuffie Road housed an RGS office as well as NETS offices. Huebner’s
    affidavit reflected that she and other agents had conducted surveillance of NETS
    for approximately two years before they obtained the warrant, and that, during this
    time, they observed that Aguirre prepared at least one tax return for a NETS client
    and attended meetings concerning NETS business. In addition, this surveillance
    revealed no indication that Aguirre’s presence or use of his office at 3107 Old
    McDuffie Road was related to RGS, and not NETS, business. Moreover, RGS was
    located at 3109 Old McDuffie Road, and thus had a separate address from NETS.
    Accordingly, at the time Huebner executed her affidavit in support of the warrant,
    she and other IRS agents, through their lengthy investigation of NETS, lacked
    information that reasonably should have put them on notice that 3107 Old
    McDuffie Road also housed an office and documents related only to RGS business.
    Because Aguirre objected below that the IRS officers exceeded the scope of
    the warrant by searching his office, he has preserved this issue for appeal, and we
    review the district court’s rulings of law as to this issue de novo. The agents who
    22
    executed the warrant did not exceed its scope. Once inside 3107 Old McDuffie
    Road, the agents discovered that Aguirre’s office was unlocked, and that it lacked
    any markings related to RGS. While the agents may have been on notice that this
    was Aguirre’s personal office, the warrant, together with Huebner’s affidavit,
    authorized a search of Aguirre’s office because he was believed to be a NETS
    employee. By the time that Aguirre arrived at NETS and informed the agents that
    his office was used for RGS business, the agents had already discovered numerous
    documents inside the office that clearly related to NETS business. Accordingly,
    the objective evidence available to the executing agents undermined Aguirre’s self-
    serving contention that his office was not part of NETS. While Aguirre contends
    that the warrant did not authorize the seizure of RGS documents, this contention
    lacks merit because the warrant authorized the seizure of client documents, and
    RGS was a client of NETS. Accordingly, the evidence available to the agents did
    not reasonably place them on notice that Aguirre’s office was not part of NETS.
    Thus, even assuming that Aguirre correctly argues that his subsequent interviews
    with IRS agents were fruits of this search, the search was permissible and, as a
    result, Aguirre’s statements did not warrant suppression as fruits of an
    impermissible search.
    III.
    23
    We review a district court’s decision regarding the admissibility of evidence
    for abuse of discretion. United States v. Schlei, 
    122 F.3d 944
    , 990 (11th Cir.
    1997).
    Under Fed.R.Evid. 404(b):
    Evidence of other crimes, wrongs, or acts is not admissible to prove
    the character of a person in order to show action in conformity
    therewith. It may, however, be admissible for other purposes, such as
    proof of motive, opportunity, intent, preparation, plan, knowledge,
    identity, or absence of mistake or accident, provided that upon request
    by the accused, the prosecution in a criminal case shall provide
    reasonable notice in advance of trial, or during trial if the court
    excuses pretrial notice on good cause shown, of the general nature of
    any such evidence it intends to introduce at trial.
    Fed.R.Evid. 404(b). Only extrinsic evidence is subject to the requirements of
    Fed.R.Evid. 404(b). Schlei, 
    122 F.3d at 990
    . “The policy behind 404(b) is to
    reduce surprise and promote early resolution on the issue of admissibility.” United
    States v. Perez-Tosta, 
    36 F.3d 1552
    , 1561 (11th Cir. 1994) (quotation omitted).
    We consider three factors in determining the reasonableness of pretrial
    notice under Rule 404(b): (1) when the proponent could have learned of the
    availability of the evidence; (2) the extent of the prejudice to the opposing party
    due to a lack of time to prepare to meet the evidence; and (3) how significant the
    evidence is to the proponent’s case. Perez-Tosta, 
    36 F.3d at 1562
    .
    Here, the district court did not abuse its discretion by denying Aguirre’s
    24
    motion to exclude the documentary evidence of his VA fraud under Rule 404(b).
    Aguirre correctly points out that the government did not timely provide him with a
    document expressly informing him that it intended to introduce documents
    indicating that he concealed his employment income from the VA so that he could
    receive disability benefits. Aguirre certainly had some notice of this evidence,
    however, because the government responded to his request concerning 404(b)
    evidence by informing him that it intended to introduce any evidence of his “prior
    frauds against the government,” and also disclosed Huebner’s memorandum
    concerning the VA documents during discovery. Significantly, Aguirre failed to
    explain below, and does not explain in his brief on appeal, how the lack of notice
    deprived him of the ability to challenge this evidence at trial. Thus, he has failed to
    demonstrate prejudice.
    Finally, this evidence was significant to the government’s case because it
    provided a motive for Aguirre’s failure to file tax returns. Although Huebner
    testified that Aguirre told her that he did not want to report his employment income
    because he received disability benefits, she did not testify about this subject at
    length, and it does not appear that the government’s brief presentation of several
    VA documents was needlessly cumulative. Accordingly, under these
    circumstances, the court did not abuse its discretion in admitting this evidence.
    25
    IV.
    Pursuant to Fed.R.Evid. 404(a), “Evidence of a person’s character or a trait
    of character is not admissible for the purpose of proving action in conformity
    therewith on a particular occasion.” Fed.R.Evid. 404(a). Nevertheless,
    “[e]vidence of the habit of a person or of the routine practice of an organization,
    whether corroborated or not and regardless of the presence of eye witnesses, is
    relevant to prove that the conduct of the person or organization on a particular
    occasion was in conformity with the habit or routine practice.” Fed.R.Evid. 406;
    Loughan v. Firestone Tire & Rubber Co., 
    749 F.2d 1519
    , 1523 (1985).
    We have distinguished evidence of an individual’s habit under Rule 406
    from character evidence under Rule 404:
    Character is a generalized description of one’s disposition, or one’s
    disposition in respect to a general trait, such as honesty, temperance,
    or peacefulness. Habit . . . describes one’s regular response to a
    repeated specific situation. If we speak of character for care, we think
    of the person’s tendency to act prudently in all the varying situations
    of life, in business, in family life, in handling automobiles, and in
    walking across the street. A habit, on the other hand, is the person’s
    regular practice of meeting a particular kind of situation with a
    specific type of conduct, such as the habit of going down a particular
    stairway two stairs at a time, or giving the hand signal for a left turn,
    or of alighting from railway cars while they are moving. The doing of
    the habitual acts may become semi-automatic.
    Loughan, 
    749 F.2d at 1524
     (quotation omitted). In order to establish that evidence
    26
    of an individual’s conduct on specific occasions rises to the level of admissible
    habit evidence, the proponent must show that the conduct occurred so often that it
    permits an “inference of systematic conduct.” 
    Id.
     (quotation omitted).
    In considering whether a defendant should be permitted to introduce
    extrinsic evidence under Fed.R.Evid. 404(b), a district court should consider
    whether the evidence bears “special relevance” to the defendant’s guilt, and
    whether there are any other practical means by which the defendant could prove
    his point. See United States v. Cohen, 
    888 F.2d 770
    , 775-76 (11th Cir. 1989);
    United States v. Rodriguez, 
    917 F.2d 1286
    , 1287, 1289-90 (11th Cir. 1990),
    vacated on reh’g in part on other grounds, 
    935 F.2d 194
     (1991). For example, we
    have held that the district court abused its discretion under Rule 404(b) by
    excluding evidence that the defendants’ co-conspirator, who was also the
    government’s key witness, could have executed the charged fraudulent scheme
    without the defendants’ involvement, because this evidence bore a special
    relevance to the defendants’ guilt. Cohen, 
    888 F.2d at 775-76
    . In addition, in
    Rodriguez, we held that the district court did not abuse its discretion under Rule
    404(b) by excluding evidence that the law enforcement officers who prosecuted the
    defendants may have entrapped a defendant in an unrelated case, because the
    defendants did not otherwise produce evidence that he was entrapped, and were
    27
    permitted to cross-examine the officers regarding their investigation tactics. 
    917 F.2d at 1287, 1289-90
    .
    Also in Rodriguez, we rejected the defendants’ arguments that the court’s
    exclusion of various items of proffered evidence amounted to the denial of their
    Sixth Amendment rights to present a vigorous defense. 
    Id. at 1291
    . We reasoned
    that the court had excluded only irrelevant evidence, and again noted that the
    defendants were able to cross-examine the government agents concerning their
    tactics. 
    Id.
    The court did not abuse its discretion in excluding Aguirre’s proposed
    evidence regarding Cruzastol. As an initial matter, it appears that evidence that
    Cruzastol falsified information on tax returns for approximately a dozen
    individuals did not constitute evidence of habit under Rule 406. Evidence that
    Cruzastol engaged in this behavior on a dozen occasions does not rise to the level
    of demonstrating an individual’s “regular practice,” or his “semi-automatic”
    response to a particular situation. Rather, the court did not abuse its discretion in
    construing this proposed evidence as impermissible character evidence under Rule
    404(b), because Aguirre sought to show that Cruzastol had acted dishonestly by
    falsifying information on other individuals’ tax returns in support of his theory that
    Cruzastol had acted dishonestly by failing to file his tax returns. This evidence
    28
    appears to fall within Rule 404(a)’s prohibition on, “[e]vidence of a person’s
    character or a trait of character . . . for the purpose of proving action in conformity
    therewith on a particular occasion.”
    Moreover, Aguirre’s proposed evidence that Cruzastol made fraudulent
    statements on client tax returns did not bear a special relevance to the issue of his
    guilt. Apart from eliciting Huebner’s testimony on cross-examination that Aguirre
    stated to her that he thought that Cruzastol had filed his tax returns, Aguirre did not
    present any evidence indicating that he had relied on Cruzastol to prepare his
    personal tax returns between 2001-2004. Moreover, even if the court had
    permitted Aguirre to introduce his proposed evidence, its probative value would
    have been limited because it would have shown that Cruzastol falsified deductions
    on tax returns, not that he repeatedly failed to file tax returns or completely omitted
    employment income on tax returns. In addition, the fact that Berry testified that it
    was Aguirre who controlled NETS further undermined the probative value of the
    proposed evidence concerning Cruzastol. Accordingly, for the foregoing reasons,
    the court did not abuse its discretion in excluding this evidence under Rule 404(b).
    Finally, the court’s ruling on this matter did not infringe on Aguirre’s Sixth
    Amendment right to present a vigorous defense, as this right does not encompass
    the right to introduce evidence that violates the federal rules. Although Aguirre
    29
    contends that his evidence regarding Cruzastol was crucial to his defense, the
    record does not include any indication that the court barred Aguirre from calling
    Cruzastol as a witness, or from testifying that he relied on Cruzastol to prepare and
    file his tax returns. Moreover, the court permitted Aguirre to cross-examine Berry
    about the fact that Cruzastol falsified information regarding mileage on client tax
    returns, and that Cruzastol also omitted Berry’s RGS income from her 2003 and
    2004 tax returns. The court also permitted Aguirre to cross-examine Huebner
    regarding Cruzastol’s preparation of RGS’s tax returns and Aguirre’s financial
    statements. Accordingly, Aguirre’s argument that the court prevented him from
    presenting a full defense lacks merit.
    V.
    In the sentencing context, we review a district court’s factual findings for
    clear error, and its legal conclusions de novo. United States v. Gupta, 
    572 F.3d 878
    , 887 (11th Cir. 2009), cert. denied, 
    463 F.3d 1182
    . “When a defendant
    challenges one of the factual bases of his sentence, the Government has the burden
    of establishing the disputed fact by a preponderance of the evidence.” 
    Id.
    (quotation and alteration omitted). “This burden must be satisfied with reliable and
    specific evidence.” 
    Id.
     (quotation omitted). A court need only make a reasonable
    estimate of loss. Id. at 888. However, a court must make factual findings
    30
    sufficient to support the loss amount set forth in the PSI, and “cannot simply rely
    upon conclusory factual recitals of the PSI.” United States v. Renick, 
    273 F.3d 1009
    , 1026 (11th Cir. 2001) (quotation omitted). Where a district court fails to
    identify the factual basis for its loss determination, meaningful appellate review is
    not possible. Gupta, 
    572 F.3d at 889
    .
    Here, it appears that the court clearly erred by failing to make factual
    findings in support of its determination that RGS’s tax liability was $239,345.
    Because Aguirre objected to this calculation of RGS’s loss amount, the court was
    required to make factual findings concerning this matter, rather than simply rely on
    the PSI. It bears noting that, in the PSI, the probation officer did not provide an
    explanation as to how he arrived at this figure. The trial transcript reflects that
    Huebner merely testified that she reviewed RGS’s business transactions. She did
    not testify as to the amount of RGS’s corporate tax liability. While the probation
    officer’s determination of RGS’s tax liability may have been based on the IRS’s
    reliable and specific computation, the record does not demonstrate this fact.
    Importantly, at the sentencing hearing, the parties and the court did not discuss the
    basis for the computation of RGS’s tax liability, and it thus is not ascertainable
    why or how the court concluded that it should adopt the PSI’s calculation of this
    figure. Accordingly, it appears that meaningful appellate review of the court’s tax
    31
    loss determination is not possible, and we remand as to this issue so that the district
    court may clarify its factual findings in this regard.
    VI.
    We review the district court’s interpretation and application of the
    Sentencing Guidelines de novo. United States v. Barakat, 
    130 F.3d 1448
    , 1452
    (11th Cir. 1997). We may affirm the district court based on any ground supported
    by the record. United States v. Campa, 
    529 F.3d 980
    , 998 (11th Cir. 2008).
    In determining a defendant’s offense level, the district court should consider
    not only the offenses of conviction, but also the defendant’s relevant conduct,
    which includes, among other things, “all acts and omissions committed . . . by the
    defendant.” U.S.S.G. § 1B1.3(1)(A); United States v. Ignancio Munio, 
    909 F.2d 436
    , 438-39 (11th Cir. 1990). The district court must take into account “the
    totality of the criminal transaction in which the defendant participated and which
    gave rise to his indictment, without regard to the particular crimes charged in the
    indictment.” Ignancio Munio, 
    909 F.2d at 438
    .
    The Guidelines provide that, in a tax evasion case, a defendant’s offense
    level should be increased by two levels, “[i]f the defendant failed to report or
    correctly identify the source of income exceeding $10,000 in any year from
    criminal activity.” U.S.S.G. § 2T1.1(b)(1). Under this guideline, the term
    32
    “criminal activity” refers to “any conduct constituting a criminal offense under
    federal, state, local, or foreign law.” U.S.S.G. § 2T1.1 comment. (n. 3). Under 
    18 U.S.C. § 641
    , it is illegal for any individual to steal or embezzle money belonging
    to a U.S. agency, including the VA. 
    26 U.S.C. § 641
    ; See United States v. Moore,
    
    504 F.3d 1345
    , 1347 (11th Cir. 2007) (noting that § 641 prohibits the theft of
    money belonging to the VA).
    Here, Aguirre’s argument that the court could not properly increase his
    sentence due to his VA fraud because this conduct was not charged in the
    indictment lacks merit, as our precedent forecloses this argument. Moreover, it
    appears that Aguirre’s VA fraud qualified as relevant conduct under
    § 1B1.3(1)(A), since his failure to report his employment income, as charged in the
    indictment, enabled his receipt of VA disability benefits.
    Regardless of whether § 2T1.1(b)(1) could properly apply where a defendant
    conceals income from the VA, the district court’s application of this guideline to
    Aguirre may be upheld under an alternative rationale. Under the plain language of
    § 2T1.1(b)(1), a defendant may receive a two-level increase to his offense level
    where he fails to report $10,000 or more in income derived from illegal activity to
    the IRS. Because the commentary to this guideline provides that it applies to any
    type of illegal activity, and 
    18 U.S.C. § 641
     prohibits the theft of government
    33
    agency funds, it appears that Aguirre’s fraudulent receipt of VA disability benefits
    falls within the guideline. Because the jury found Aguirre guilty of failing to file
    tax returns in 2002, 2003, and 2004, the record reflects that Aguirre did not report
    his illegally received income to the IRS. Accordingly, it appears that Aguirre’s
    conduct falls within the plain meaning of § 2T1.1(b)(1), and Aguirre does not point
    to controlling case law demonstrating otherwise.
    Aguirre’s convictions are affirmed; his sentence is vacated and the case is
    remanded for a recalculation of the loss amount to be used in resentencing.
    AFFIRMED IN PART, REMANDED IN PART WITH
    INSTRUCTIONS.
    34