Once again we are faced with an appeal in which a convicted defendant-appellant seeks to overturn his conviction by alleging prosecutorial misconduct. In this case, defendant-appellant Curtis Babb claims that his conviction for committing perjury before a United States grand jury is fundamentally unfair because the prosecutor falsely assured him, immediately before his grand jury testimony and in the presence of the grand jury, that he was neither a subject nor a target of the grand jury’s inquiry. Alternatively, Babb urges us to exercise our supervisory powers to suppress his testimony because the prosecutor disregarded Department of Justice guidelines regarding subject and target warnings. We affirm the conviction.
I.
The ease arises from an investigation by a United States grand jury, sitting in Boston, Massachusetts, of a massive heroin and cocaine distribution organization, known as the Capsule Boys for its practice of encapsulating the drugs it distributed. The record before us reveals that the grand jury had questioned a large number of witnesses, beginning at least as early as March 21, 1984 and extending to at least July 25, 1984. The record also shows that the same Assistant United States Attorney, Oliver C. Mitchell (the prosecutor), had conducted the questioning throughout the investigation. Babb was among the last witnesses questioned in this group, having been called on July 25, 1984.
The record before us also indicates that it was the prosecutor who first had mentioned Babb’s name in the course of the grand jury proceedings, during the questioning of Jackson Blandley in Mr. Blandley’s third appearance before the grand jury. The prosecutor specifically had asked, “And Curtis Babb, sir, do you know him?” Testimony of Jackson Blandley, April 25, 1984, at 13. Subsequent witnesses either had named Babb spontaneously 1 or had responded to the prosecutor’s direct questions about Babb. 2 In addition, the testimony of Charles Irby on July 13, 1984 had directly implicated Babb in the organization and supervision of the Capsule Boys. Irby, who had been given an opportunity to recant his prior grand jury testimony, had begun his recantation by describing Babb as the person who had recruited him to sell drugs in Boston. Moreover, throughout his testimony, Irby had mentioned Babb as a central figure in the organization and supervision of drug sales in Boston. Testimony of Charles Irby, July 13, 1984, passim.
When called to testify before the grand jury on July 25, 1984, Babb was incarcerat *275 ed. He appeared without the assistance of counsel. After having been given the usual oath, Babb was advised of his fifth amendment rights. 3 In addition, the prosecutor informed him that, “at this stage of the Grand Jury investigation you are neither a target nor a subject of the investigation.” Testimony of Curtis Babb, July 25, 1984, at 4. The prosecutor then informed Babb of the subject matter of the investigation but did not inform him that his name had come up frequently in the questioning of other witnesses. The record reveals that Babb was a reticent witness, answering most questions with a terse “No, sir” or “Yes, sir.” Id., passim. Nevertheless, Babb’s answers were sharply at variance with the testimony of prior witnesses; his short answers were a categorical denial of both his involvement with the Capsule Boys and his relationships with numerous other witnesses. Once Babb had so testified, the prosecutor warned him about the possibility of a perjury indictment and asked him if he wished to change his testimony. Babb, however, continued to testify in the same manner.
On August 12, 1985, Babb was indicted both for knowingly making false material declarations before a United States grand jury in violation of 18 U.S.C. § 1623(a) and for conspiracy to possess with intent to distribute and conspiracy to distribute heroin and cocaine in violation of 21 U.S.C. § 846. Prior to trial, Babb moved both to suppress his grand jury testimony and to dismiss the perjury indictment alleging that the misrepresentations regarding his status before the grand jury were a violation of his fifth amendment rights. The trial court denied both motions and also refused Babb’s request for an evidentiary hearing. Following a jury-waived trial at which the government did not use his grand jury testimony, Babb was found guilty of the conspiracy charge. Babb then entered a conditional plea of guilty to the perjury charge, reserving his motion to suppress for this appeal, which he timely filed.
II.
Babb admits that he committed perjury before the United States grand jury. *276 Nevertheless, he seeks to excuse this perjury by pointing out that the prosecutor affirmatively misrepresented to him that he was neither a target nor a subject 4 of the grand jury investigation. We turn first to Babb’s argument that the prosecutor’s misrepresentations regarding his status were a violation of his fifth amendment rights.
A. Self-Incrimination
Babb argues that the prosecutor’s misrepresentations taint any supposed waiver by him of his fifth amendment privilege against self-incrimination because, under the circumstances, his waiver cannot be found to be knowing and intelligent. 5 Babb’s self-incrimination claim must fail, however, because at no time did Babb incriminate himself.
Witnesses appearing before the grand jury enjoy the protection of the fifth amendment privilege against self-incrimination.
Counselman v. Hitchcock,
As Babb correctly points out, however, these cases do not address the distinct question of whether misleading warnings should lead to a different result. Babb, however, ignores the scope of the privilege against self-incrimination. Babb asserts that he had relied on the prosecutor’s misrepresentations and that, consequently, he had incriminated himself before the grand jury. This assertion, however, is not supported by the record. Instead, it is clear from the record that Babb did not incriminate himself — rather, he committed perjury, a separate crime which has never been held to be the substantive equivalent of self-incrimination.
“The privilege against self-incrimination bars compelled testimony as to past crimes; it does not shelter new perjury.”
United States v. Chevoor,
In this constitutional process of securing a witness’ testimony, perjury simply has no place whatever. Perjured testimony is an obvious and flagrant affront to the basic concepts of judicial proceedings. Effective restraints against this type of egregious offense are therefore imperative. The power of subpoena, broad as it is, and the power of contempt for refusing to answer, drastic as that is — and even the solemnity of the oath— cannot insure truthful answers. Hence, Congress has made the giving of false answers a criminal act punishable by severe penalties; in no other way can criminal conduct be flushed into the open where the law can deal with it.
Similarly, our cases have consistently — indeed without exception — allowed sanctions for false statements or perjury; they have done so even in instances where the perjurer complained that the Government exceeded its constitutional powers in making the inquiry.
Mandujano,
B. Fundamental Fairness
Turning now to Babb’s claim that the misrepresentations undermined the fundamental fairness of the proceedings against him, we note that peijured testimony before a grand jury will be suppressed because of prosecutorial misconduct only if the misconduct undermines the validity of the grand jury process itself.
United States v. Doss,
Target and subject warnings, however, do not affect the validity of the grand jury process. Indeed, they “add nothing of value to protection of Fifth Amendment rights.”
Washington,
In
United States v. Crocker,
This court has also had the opportunity to consider whether prosecutorial misrepresentations regarding a grand jury witness’s target status require the suppression of that witness’s self-incriminating testimony. In
United States v. Winter,
In Winter, we approached the witness’s due process claim by evaluating the totality of the circumstances to determine whether the misrepresentations had actually misled the witness. Id. at 1151. We noted that the warnings that were given more than fulfilled the constitutional requirements. In addition, we found that the witness could not “possibly have been misled into waiving his rights” since the prosecutor had warned him that his name had been mentioned by other witnesses. Id. at 1152. Finding no relationship between the misconduct and the harm of which the witness complained, we concluded that his due process claim was “tenuous indeed.” Id.
Turning now to the present case, we find that the reasoning of Winter and Crocker is dispositive. We note first that Babb received all the warnings required by the Constitution. In addition, Babb was informed of the subject matter of the grand jury’s inquiry. As both Winter and Crock-er hold, once the prosecutor has fulfilled any constitutional requirements and if the witness is apprised of the subject of the inquiry, additional warnings, even if inaccurate, are irrelevant.
Finally, we disagree with Babb’s assertion that the record supports an inference that Babb’s reliance on the misrepresentations make any subsequent proceedings
*279
against him fundamentally unfair. Even if we assume, for purposes of Babb’s contentions, that the prosecutor purposely attempted to mislead Babb, the obvious reason for such misrepresentations would have been to induce Babb to waive his fifth amendment privilege and to give helpful testimony to the grand jury. As we discussed above, Babb was not misled in this manner. In fact, it defies logic to argue that assurances that might have lulled a witness into giving incriminating statements had the effect of inducing the witness to commit perjury. Consequently, we find that Babb has failed to establish the necessary nexus between the alleged misconduct and his subsequent peijurious testimony in order to support a claim of fundamental unfairness.
See United States v. McNeill,
III.
Finally, Babb urges us to reach the issue that we did not reach in
In re Angiulo,
Our review of the record reveals that the prosecutor failed to give target or subject warnings to any witness called before the grand jury in this investigation. Other than the statements at issue in this appeal, there is only one additional mention of target and subject status — the prosecutor informed one other witness that she was not a target or a subject. See Testimony of Brenda Thomas Austin, July 25, 1984, at 6. During the course of this same testimony, however, this same prosecutor also stated: “Mrs. Austin, the Grand Jury has reason to believe that you had some association with the Capsule Boys group.” Id. at 26. In light of this record, we find the government’s characterization of the prosecutor’s statements as a good faith error, Brief for Appellee at 17 n. 3, to be totally unpersuasive. Moreover, as we mentioned at argument, we are particularly displeased that this prosecutor did not appear before us to argue the case. In sum, we find the prosecutor’s behavior to be more than “quite troublesome;” we find it to be unprofessional and worthy of severe condemnation.
Nevertheless, as we noted in
United States v. Lieberman,
*280 We have considered Babb’s other arguments and find them without merit. The conviction for perjury is
Affirmed.
Notes
. Testimony of Sharon Berry, June 22, 1984, at 12-13 (naming Babb as one of the people Michael DuBose introduced to her as a friend who sold cocaine or heroin in capsules); Testimony of Barbara Berry, June 29, 1984, at 15 (identifying Babb as a visitor at Jackson Blandley’s rented room); Testimony of Michael DuBose, July 6, 1984, at 13 (naming Babb as his associate in the sale of drugs); Testimony of Pamela Du-Bose, July 13, 1984, at 12 (mentioning Babb as an acquaintance of her brother, Michael Du-Bose).
. Testimony of Gwendolyn Berry, June 22, 1984, at 54 ("Do you know Curtis Babb?"); Testimony of Doreen Lee, July 6, 1984, at 17 ("And do you know a person named Curtis Babb?”); Testimony of May Jo Smith, July 6, 1984, at 17 ("Do you know a person named Curtis Babb?”); Testimony of Brenda Thomas Austin, July 25, 1984, at 22 (“Do you know Curtis Babb?”).
. The full text of the pertinent part of the grand jury transcript reads as follows:
Q. Now, Mr. Babb, I have to explain certain rights to you, rights which you have under the Constitution to [sic] the United States. You have a right to remain silent and to refuse to answer any question which might tend to incrinjinate you. Do you understand that, sir?
A. Yes, sir.
Q. You have a right, sir, also to consult with a lawyer before testifying before the Grand Jury and if you cannot afford a lawyer, a lawyer can be appointed for you. Do you understand that?
A. Yes, sir.
Q. And Mr. Babb, do you understand that if you say anything before the Grand Jury, anything you say can be used in a court of law to prosecute you? Do you understand that?
A. Yes, sir.
Q. Mr. Babb, I should inform you that at this stage of the Grand Jury investigation you are neither a target nor a subject of the investigation. Do you understand that, sir?
A. Yes, sir.
Q. And do you understand what I mean when I say you are not a target and you are not a subject?
A. Yes, sir.
Q. Do you understand that, you’re comfortable with those terms?
A. Yes, sir.
Q. And Mr. Babb, let me tell you briefly what the Grand Jury’s investigation is about. The Grand Jury is looking into the activities of a group of men and some women who were collectively knows as the Capsule Boys and their distribution of heroin and cocaine principally in the Roxbury and Dorchester sections in Boston in 1981, 1982 and part of 1983. The Grand Jury is also investigating the activities of certain individuals located in New York City and Bridgeport, Connecticut and Greenville, South Carolina and their relationship to the Capsule Boys organization. Do you understand what I have just said to you?
A. Yes, sir.
Q. The Grand Jury is focusing also, sir, on possible violations of Title 21 of the United States Code, Section 846 which makes it unlawful to conspire to commit an offense against the United States. Do you understand that, sir?
A. Yes.
Q. Yes?
A. Yes, sir, I do.
Testimony of Curtis Babb, July 25, 1984, at 3-5.
. Babb argues that at the time of his testimony he was a subject or a target of the grand jury investigation. Under the relevant Department of Justice guidelines, a "target” is defined as “a person as to whom the prosecutor or the grand jury has substantial evidence linking him to the commission of a crime and who, in the judgment of the prosecutor, is a putative defendant.” A "subject” is “a person whose conduct is within the scope of the grand jury's investigation." It is clear from the record that Babb was at least a subject. The government, however, apparently concedes that Babb was a target. Brief for Appellee at 17 n. 3. Usually, a determination of target status requires an evidentiary hearing.
See United States v. Winter,
. Babb alleges, but does not seriously pursue this allegation, that he had attempted to claim his fifth amendment privilege against self-incrimination at the beginning of his appearance before the grand jury. The transcript of the pertinent exchange reads as follows:
Q. Now, Mr. Babb, having in mind all of the rights I detailed to you, do you wish to testify before the Grand Jury?
A. No, sir.
Q. And can you explain to the Grand Jury the basis for your refusal to testify to the Grand Jury?
A. One thing, I am not sure what’s going on. I don’t have no knowledge of what’s happening and I don’t want to get involved in nothing.
Q. And so you’re telling the Grand Jury that the only reason you don’t want to testify is you have no knowledge regarding the activities of the Capsule Boys, is that right?
A. Yes, sir.
Q. And you're telling the Grand Jury that you don't want to testify also because you don’t want to get involved, is that right? A. Yes, sir.
Q. And those are the only reasons you don't want to testify before the Grand Jury, is that correct?
A. Yeah, I don’t want to get involved with nothing.
Q. And you say you don’t know anything about the activities of the Capsule Boys?
A. No, sir.
Testimony of Curtis Babb, July 25, 1984, at 5-6.
If the fifth amendment privilege before a grand jury were as broad as the privilege that attaches to custodial interrogation, Babb’s allegation would indeed heighten our inquiry. Unlike a person subject to custodial interrogation, however, a witness before a grand jury cannot refuse to answer all questions. Instead, the witness must assert the privilege as to those questions that require a self-incriminating answer; once the privilege is asserted, however, the grand jury may pursue other lines of inquiry.
United States
v.
Mandujano,
. We cannot overly stress this distinction between the prosecutor’s misrepresentations and Babb’s perjury. To be convicted for perjury, Babb’s false statements must have been both knowingly made and material. 18 U.S.C. § 1623(a). Even if the prosecutor had knowingly made false statements to Babb, in this context these misrepresentations would not have been material. If his misrepresentations had been material, then Babb’s conviction would have been a product of the prosecutor’s improper conduct, and we would have been willing to exercise our supervisory powers.
