Dеfendants were convicted of willful evasion of federal income taxes, in violation of 26 U.S.C. § 7201 (1970), and of making materially untrue and incorrect tax returns, in violation of 26 U.S.C. § 7206(1) (1970), and were sentenced accordingly. 1 On this appeal, defendants urge a considerable number of grounds for reversal, but their primary contention concerns certain evidentiary matters relating to the government’s use of the bank deposits method of reconstructing gross income.
Despite the fact that all taxpayers are under an affirmative statutory duty to maintain adequate records for tax purposes, 26 U.S.C. § 6001 (1970), Treas.Reg. § 1.6001-1 (a) (1973), this requirement has not always been complied with. In a situation where adequate records do not exist or access to them is not available, the government, in attempting to establish a violation of the income tax laws, may reconstruct a taxpayer’s taxable base by any reasonable method. United States v. Firtel,
In the instant ease, due to the inadequacy of defendants’ records, the government resorted to the bank depоsits method in order to prove that defendants’ gross income for the tax years in issue had been substantially and knowingly understated on their returns. 3 After satisfying all the preliminary requirements for adoption of this approach, United States v. Frank, supra, the government introduced bank records, deposit slips, balance statements, and certain customer checks, to establish the total amounts which the defendants had deposited in their six bank аccounts. Internal Revenue Service Special Agent Arthur Ansbigian, who conducted the bank deposits investigation, was called to testify concerning these records. His summaries of this and other evidence were exhibited to the jury in the form of several chalks. 4 After testifying with respect to the total bank deposits, *153 Agent Ansbigian indicated in some detail the procedures he adopted to determine all non-income deposits. As these deposits were identified, they were dеducted from the total deposit amount. Ansbigian then testified as to undeposited business income, primarily in the form of customer checks which had been cashed or endorsed over to third parties. This testimony was supported by the relevant documentary evidence, and the ascertained amounts were added to the bank deposit total to produce reconstructed gross income.
With respect to thesе calculations, defendants strenuously object to the nature of the government’s evidence concerning the non-income deposits deduction. They urge that, unlike the evidence respecting total bank deposits and undeposited business income, the non-income deposits evidence was unsupported by independent documentation and corroboration, and essentially constituted inadmissible hearsay.® We agree and reverse for a new trial. 5 6
Agent Ansbigian testified that upon completion of a thorough investigation, and after giving the defendants the benefit of every doubt, he was able to discern eight categories of non-income deposits, with amounts as follows: 7
1965 1966 1967 1968
(1) LOAM PROCEEDS ............ $24,055.66 $17,208.00 $ 32,600.00 $ 8,000.00
(2) INTER-BANK TRANSFERS ..... 860.00 11,000.00 27,480.00 -0-
(3) CURRENCY DEPOSITS ........ 2,580.00 7,045.00 6,437.00 -0-
(4) CUSTOMER CHECKS RETURNED 57.50 712.00 357.96 -0-
(5) PROCEEDS FROM SALE OF LAND .................... -0-50,000.00 94,132.21 -0-
(6) PROCEEDS FROM SALE OF TRUCK ................... -0--0--0-6,000.00
(7) RETURNED CERTIFIED CHECK .. -0--0--0-500.00
(8) UNIDENTIFIED .............. 12.00 2.00 2,722.07 1,462.50
TOTAL NON-INCOME DEPOSITS . . (Excluded from Total Bank Deposits) $27,565.16 $85,967.00 $163,729.24 $15,962.50
*154 However, despite the fact that Ansbigian arrived at these figures, in part, through extra-judicial inquiry and a careful review of related documents, the government made no attempt to support his analysis through the introduction of any corroborating witnesses or available records. Rather, the government apparently took the view that since these items are credits to the taxpayer, even if hearsay and not adequately proved, no prejudice resulted.
Such an approach loses sight of the true nature of the governmеnt’s total objective, and its burden. The significance of the agent’s allowing a non-income deduction is not the concession, but the corresponding implication that it should not be larger. We may agree with the government that such a negative implication may not be provable with the particularity that is required for proof of affii’mative receipts,
cf.
Greenberg v. United States,
The damaging nature of the non-income deposits hearsay evidence in issue here might best be illustrated with an example. With respect to deposited loan proceeds, an obvious non-income deduction, the agent testified that
“I had copies ... of liability ledger cards, listing all the loans, renewals, payments, new loans, I had all of that. Examining the liability ledger cards I determined the loans.
******
“I traced loan proceeds to all bank accounts to see if the bank account was credited or the proceeds were deposited. If they appeared as a deposit, they would be in this top line here. I would add a schedule showing loan proceeds and the dispositon of them. Anything that was deposited comes out, anything. There were several instances in which the loan proceeds were not deposited.”
Nonetheless, with but one exception (pertaining to the 1965 return), the government made no effort to introduce the ledger cards into evidence. Thus, neither court nor jury were provided with any independent corroboration of the purported total amounts of loan proceeds. Moreover, without the ledger cards, they lacked any knowledge of the particular banks from which the loans were received, the dates thereof, and the amount of each individual loan. All they had was hearsay evidence from Ansbigian regarding the final results of his extra-judicial investigation.
Plainly stated, in computing the deduction for deposited loan proceeds, the agent not only examined the bank deposit records, which were admittedly in evidence before the jury, but examined the liability ledger cards as well. Knowing the amount of each loan, its date, and the bank from which it was obtained, put the agent in a better position to evaluate the bank deposit records to ascertain the amounts of deposited loans. However, in the absence of the ledger cards, the jury was at a significant disadvantage should it seek to corroborate the agent’s testimony. Thus, without any meaningful documentary corrobora
*155
tion of important aspect of Ansbigian’s testimony, it had virtually no choice but to rely exclusively on his hearsay conclusion that his allowance was the maximum deduction. Moreover, without admissible independent documentation, neither the trial court, nor this court is in a position to adequately evaluate the accuracy of the amount of deposited loan proceeds determined by Ansbigian as available for non-income deductions.
10
In order to eliminate the hearsay aspect of his testimony the government should have introduced all available evidence upon which the agent based his non-income deposit calculations.
See
Siravo v. United States,
In light of the fact that we are reversing for a new trial, it appears appropriate to pass upon such other contentions raised by the taxpayers which seem likely to recur on remand.
The taxpayers allege that potentially damaging statements obtained from them, under oath, at an October 19, 1970, interview with IRS officials should have been suppressed on the grounds that proper cautionary warnings, as required by IRS News Release IR-949 (November 26, 1968), 12 had not been given. 13 In addition, they contend that a certain document obtained from their accountant, Timothy Demakis, should have been suppressed for similar reasons. 14
It is undisputed that at the October 19 meeting, when the taxрayers were first formally interviewed, they were never fully apprised of the warnings mandated by the 1968 News Release. However, the government contends, and the record reveals, that when the IRS agents initially contacted the taxpayers in August 1969 for the purpose of discussing their tax returns, the agents were referred to their lawyer, James Bagshaw. The record further establishes that, as a consequence, an IRS offi *156 eial therеafter met with Bagshaw on September 19, 1969. At that time, the official, after discharging his obligation under the 1968 News Release, 15 described in some detail the nature of the civil and criminal charges against the taxpayers which were then under consideration.
Thus, the question which we must decide, under these facts, is whether the IRS sufficiently complied with the 1968 News Release by giving adequate and full warning to the taxpayers’ attorney prior to their initiаl October 19 interview. We note that while the warnings required by the 1968 News Release would not be constitutionally compelled under Miranda v. Arizona,
The taxpayers’ remaining contentions merit little discussion. They assert that as the result of an apparently inexplicаble two month delay between the impaneling of a jury and the commencement of trial, they were denied their sixth amendment rights to a speedy trial. Whether a defendant’s right to a speedy trial has been prejudiced depends .upon evaluation of an
“ad hoc
balancing test in which the length of delay, the reasons for the delay, the accused’s assertion of his right, and the prejudice to the accused resulting from
*157
the delay, along with other relevant circumstances” are carefully considered. United States v. Cabral,
The final contention made by the taxpayers is that the counts of the indictment which allege violations of 26 U.S.C. § 7206(1) should have been dismissed for failure to charge an offense. The challenged counts alleged that by knowingly and substantially understating their “gross receipts,” information-as to which is specifically required by Schedule C of the Form 1040 tax return, 16 the taxpayers subscribed to a materially untrue and incorrect matter. They now assert that misrеpresentations as to gross receipts would not constitute material misstatements. We disagree. See Siravo v. United States, supra.
Reversed and remanded for a new trial.
Notes
. Defendant John Morse was convicted on a total of six counts relating to income tax returns filed in 1966, 1967, and 1968. He was acquitted of all charges with respect to his 1965 return. Defendant Alice Morse was convicted on two counts relating to the 1968 return.
. Other frequently used approaches include the “net worth” method,
see
Holland v. United States,
. It is well settled that under the bank deposits theory, the government is not obliged to prove the exact amount of the understatement, but merely that it has been “substantial.”
United
States v. Procario,
. In all, five chalks were eventually submitted to the jury. Chalk # 1, the summary chart, outlined the step-by-step approach taken by the government in calculating defendants’ understated gross income. The first line of this chalk indicated the total amount of bank deposits for each of the years in question (1965-1968). The second line indicated the amount of non-income deposits which, when subtracted from line 1, left the total amount of deposited income. To this amount was added all income which *153 the government determined had not been deposited, and, after certain adjustments, the resulting total was taken as the taxpayers’ reconstructed gross income. The income actually reported by the taxpayers was then subtracted, leaving the understated amounts of gross income. For the years in question, these amounts totalled $22,575.21 (1965), $25,120.21 (1966), $25,280.73 (1967), and $40,479.82 (1968).
Chalk # 2 exhibited a breakdown of the total bank deposits from each of defendants’ bank accounts. Chalk # 3 contained an itemized list of the non-income deposits which had been excluded. Chalk # 4 listed defendants’ undeposited business income. Chalk # 5 contained a computation of the amount of tax owed by the defendants on the basis of their understated gross income. For the years in question, these amounts were $182.80 (1965), $1,811.30 (1966), $5,148.52 (1967), $10,047.06 (1968).
. Despite the government’s contention, we find adequate and timely objection in the record to the admission cf. this evidence.
. Defendants also contend that this hearsay evidence compromised the validity оf the submitted chalks as permissible jury aids, particularly chalks 1, 3 and 5,
see
note 4
supra,
and that their admission was consequently prejudicial. We feel constrained to agree since, in view of the “inherent dangers” of such chalks,
see
Lloyd v. United States,
. These figures comprised the government’s Chalk # 3. The “total Non-Income Deposits” were carried forward to the summаry chart, Chalk # 1, for the purpose of ascertaining reconstructed gross income. They were also used, implicitly, in Chalk # 5, wherein the government sought to establish the amount of tax allegedly due on defendants’ understated gross income.
. To be sure, the court must rely on mere assertion when the agent testifies that he could find no evidence of other non-income items, but then, of course, no better evidence would exist.
. In its brief, the government contends that “as long as the total bank deposits were properly in evidence, it was not required to prove with particularity each elimination or exclusion from total bank deposits, but could rely on the Special Agent’s testimony as to the scope. and character of his investigation to negative the likelihood that deposits remaining after eliminations had been made arose from some non-taxable source.”
. Similar hearsay evidence affected the agent’s testimony regarding inter-bank transfers, returned checks, and sales proceeds. Neither the corroborating witnesses nor the bank microfilm and memoranda upon which Ansbigian relied in ascertaining the amounts of these permissible non-income deductions were introduced into evidence.
. The problems connected with introducing evidenсe in the instant case, if any, can in no way be compared with those confronting the court in Beard v. United States,
. The News Release provides, in relevant part:
“At the initial meeting with a taxpayer, a Special Agent is now required to identify himself, describe his function, and advise the taxpayer that anything he says may be used against him. The Special Agent will also tell the taxpayer that he cannot be compelled to incriminate himself by answering any questions or producing any documents, and that he has the right to seek the assistance of an attorney before responding.”
. Alternatively, the taxpayers assert that these statements should not have been admitted into evidence because the interview was conducted in violation of Treasury Regulation § 601.107(b)(2) (1973) which requires governmental disclosure of certain aspects of the proposed criminal charge. The district court, after cоnducting a full evidentiary hearing, determined that IRS officials did, in fact, sufficiently inform the taxpayers of the nature and essence of the proposed charge, as required by the regulation. The record provides ample support for this conclusion.
. The taxpayers further urge that this document should have been suppressed because Demakis allegedly acted without their consent. However, the district court cоncluded that Demakis liad received the taxpayers’ implied consent to handle their affairs in any appropriate manner, and that, in making the document available to the government, he acted with “apparent authority.” Upon careful review of the record, we are in complete accord. Moreover, we note that even in the absence of the taxpayers’ consent, it is unlikely that any of their constitutional rights would have been violated by Demakis’ decision to transmit the document to the IRS.
See
Couch v. United States,
. The taxpayers assert that Bagshaw possessed only a limited power-of-attorney and was thus not authorized to receive the News Release warnings in issue. This contention, however, is completely without merit. The power-of-attorney executed in Bagshaw’s favor was on a standard form and clearly authorized him tо “represent the taxpayer (s) before any office of the Internal Revenue Service.” We agree with the district court that the scope of this “representation” included the receipt of cautionary warnings.
. Virtually all the income received by the taxpayers during the years in question was derived from the operation of a sole proprietorship. Schedule C requires all such proprietorships to list their “gross receipts.” That amount is an integral and necessary figure in the computation of taxable income and the amount of tax due.
See
Siravo v. United States,
supra,
