delivered the opinion of the Court.

The question is whether the District Court properly suppressed the fruits of an unlawful search that did not invade the respondent’s Fourth Amendment rights.

I

Respondent Jack Payner was indicted in September 1976 on a charge of falsifying his 1972 federal income tax return in violation of 18 U. S. C. § 1001.1 The indictment alleged that respondent denied maintaining a foreign bank account at a time when he knew that he had such an account at the Castle Bank and Trust Company of Nassau, Bahama Islands. The Government’s case rested heavily on a loan guarantee agreement dated April 28, 1972, in which respondent pledged *729the funds in his Castle Bank account as security for a $100,000 loan.

Respondent waived his right to jury trial and moved to suppress the guarantee agreement. With the consent of the parties, the United States District Court for the • Northern District of Ohio took evidence on the motion at a hearing consolidated with the trial on the merits. The court found respondent guilty as charged on the basis of all the evidence. The court also found, however, that the Government discovered the guarantee agreement by exploiting a flagrantly illegal search that occurred on January 15, 1973. The court therefore suppressed “all evidence introduced in the case by the Government with the exception of Jack Payner’s 1972 tax return . . . and the related testimony.” 434 F. Supp. 113, 136 (1977). As the tax return alone was insufficient to demonstrate knowing falsification, the District Court set aside respondent’s conviction.2

The events leading up to the 1973 search are not in dispute. In 1965, the Internal Revenue Service launched an investigation into the financial activities of American citizens in the Bahamas. The project, known as “Operation Trade Winds,” was headquartered in Jacksonville, Fla. Suspicion focused on the Castle Bank in 1972, when investigators learned that a suspected narcotics trafficker had an account there. Special Agent Richard Jaffe of the Jacksonville office asked Norman Casper, a private investigator and occasional informant, to learn what he could about the Castle Bank and its depositors. To that end, Casper cultivated his friendship with Castle *730Bank vice president Michael Wolstencroft. Casper introduced Wolstencroft to Sybol Kennedy, a private investigator and former employee. When Casper discovered that the banker intended to spend a few days in Miami in January 1973, he devised a scheme to gain access to the bank records he knew Wolstencroft would be carrying in his briefcase. Agent Jaffe approved the basic outline of the plan.

Wolstencroft arrived in Miami on January 15 and went directly to Kennedy’s apartment. At about 7:30 p. m., the two left for dinner at a Key Biscayne restaurant. Shortly thereafter, Casper entered the apartment using a key supplied by Kennedy. He removed the briefcase and delivered it to Jaffe.' While the agent supervised the copying of approximately 400 documents taken from the briefcase, a “lookout” observed Kennedy and Wolstencroft at dinner. The observer notified Casper when the pair left the restaurant, and the briefcase was replaced. The documents photographed that evening included papers evidencing a close working relationship between the Castle Bank and the Bank of Perrine, Fla. Subpoenas issued to the Bank of Perrine ultimately uncovered the loan guarantee agreement at issue in this case.

The District Court found that the United States, acting through Jaffe, “knowingly and willfully participated in the unlawful seizure of Michael Wolstencroft’s briefcase....” Id., at 120. According to that court, “the Government affirmatively counsels its agents that the Fourth Amendment standing limitation permits them to purposefully conduct an unconstitutional search and seizure of one individual in order to obtain evidence against third parties. . . .” Id., at 132-133. The District Court also found that the documents seized from Wolstencroft provided the leads that ultimately led to the discovery of the critical loan guarantee agreement. Id., at 123.3 Although the search did not impinge upon the *731respondent's Fourth Amendment rights, the District Court believed that the Due Process Clause of the Fifth Amendment and the inherent supervisory power of the federal courts required it to exclude evidence tainted by the Government’s “knowing and purposeful bad faith hostility to any person’s fundamental constitutional rights.” Id., at 129; see id., at 133, 134-135.

The Court of Appeals for the Sixth Circuit affirmed in a brief order endorsing the District Court’s use of its supervisory power. 590 F. 2d 206 (1979) (per curiam). The Court of Appeals did not decide the due process question. We granted certiorari, 444 U. S. 822 (1979), and we now reverse.

II

This Court discussed the doctrine of “standing to invoke the [Fourth Amendment] exclusionary rule” in some detail last Term. Rakas v. Illinois, 439 U. S. 128, 138 (1978). We reaffirmed the established rule that a court may not exclude evidence under the Fourth Amendment unless it finds that an unlawful search or seizure violated the defendant’s own constitutional rights. Id., at 133-140. See, e. g., Brown v. United States, 411 U. S. 223, 229-230 (1973); Alderman v. United States, 394 U. S. 165, 171-172 (1969); Simmons v. United States, 390 U. S. 377, 389 (1968). And the defendant’s Fourth Amendment rights are violated only when the challenged conduct invaded his legitimate expectation of privacy rather than that of a third party. Rakas v. Illinois, 439 U. S., at 143; id., at 149-152 (Powell, J., concurring) ; Combs v. United States, 408 U. S. 224, 227 (1972); Mancusi v. DeForte, 392 U. S. 364, 368 (1968).

The foregoing authorities establish, as the District Court recognized, that respondent lacks standing under the Fourth *732Amendment to suppress the documents illegally seized from Wolstencroft. 434 F. Supp., at 126. The Court of Appeals did not disturb the District Court’s conclusion that “Jack Payner possessed no privacy interest in the Castle Bank documents that were seized from Wolstencroft.” Ibid.; see 590 F. 2d, at 207. Nor do we. United States v. Miller, 425 U. S. 435 (1976), established that a depositor has no expectation of privacy and thus no “protectable Fourth Amendment interest” in copies of checks and deposit slips retained by his bank. Id., at 437; see id., at 442. Nothing in the record supports a contrary conclusion in this case.4

*733The District Court and the Court of Appeals believed, however, that a federal court should use its supervisory power to suppress evidence tainted by gross illegalities that did not infringe the defendant’s constitutional rights. The United States contends that this approach- — as applied in this case— upsets the careful balance of interests embodied in the Fourth Amendment decisions of this Court. In the Government’s view, such an extension of the supervisory power would enable federal courts to exercise a standardless discretion in their application of the exclusionary rule to enforce the Fourth Amendment. We agree with the Government.

Ill

We certainly can understand the District Court’s commendable desire to deter deliberate intrusions into the privacy of persons who are unlikely to become defendants in a criminal prosecution. See 434 F. Supp., at 135. No court should condone the unconstitutional and possibly criminal behavior of those who planned and executed this “briefcase caper.” 5 *734Indeed, the decisions of this Court are replete with denunciations of willfully lawless activities undertaken in the name of law enforcement. E. g., Jackson v. Denno, 378 U. S. 368, 386 (1964); see Olmstead v. United States, 277 U. S. 438, 485 (1928) (Brandéis, J., dissenting). But our cases also show that these unexceptional principles do not command the exclusion of evidence in every case of illegality. Instead, they must be weighed against the considerable harm that would flow from indiscriminate application of an exclusionary rule.

Thus, the exclusionary rule “has been restricted to those areas where its remedial objectives are most efficaciously served.” United States v. Calandra, 414 U. S. 338, 348 (1974). The Court has acknowledged that the suppression of probative but tainted evidence exacts a costly toll upon the ability of courts to ascertain the truth in a criminal case. E. g., Rakas v. Illinois, 439 U. S., at 137-138; United States v. Ceccolini, 435 U. S. 268, 275-279 (1978); Stone v. Powell, 428 U. S. 465, 489-491 (1976); see Michigan v. Tucker, 417 U. S. 433, 450-451 (1974).6 Our cases have consistently recognized that unbending application of the exclusionary sanction to enforce ideals of governmental rectitude would impede unacceptably the truth-finding functions of judge and jury. E. g., Stone v. Powell, supra, at 485-489; United States v. Calandra, supra, at 348. After all, it is the defendant, and not the constable, who stands trial.

The same societal interests are at risk when a criminal defendant invokes the supervisory power to suppress evidence seized in violation of a third party’s constitutional rights. The supervisory power is applied with some caution even *735when the defendant asserts a violation of his own rights.7 In United States v. Caceres, 440 U. S. 741, 754-757 (1979), we refused to exclude all evidence tainted by violations of an executive department’s rules. And in Elkins v. United States, 364 U. S. 206, 216 (1960), the Court called for a restrained application of the supervisory power.

“[A]ny apparent limitation upon the process of discovering truth in a federal trial ought to be imposed only upon the basis of considerations which outweigh the genera] need for untrammeled disclosure of competent and relevant evidence in a court of justice.” Ibid.

See also Nardone v. United States, 308 U. S. 338, 340 (1939).

We conclude that the supervisory power does not authorize a federal court to suppress otherwise admissible evidence on the ground that it was seized unlawfully from a third party not before the court. Our Fourth Amendment decisions have established beyond any doubt that the interest in deterring illegal searches does not justify the exclusion of tainted evidence at the instance of a party who was not the victim of the challenged practices. Rakas v. Illinois, supra, at 137; Alderman v. United States, 394 U. S., at 174-175.8 *736The values assigned to the competing interests do not change because a court has elected to analyze the question under the supervisory power instead of the Fourth Amendment. In either case, the need to deter the underlying conduct and the detrimental impact of excluding the evidence remain precisely the same.

The District Court erred, therefore, when it concluded that *737“society’s interest in deterring [bad faith] conduct by exclusion outweigh [s] society’s interest in furnishing the trier of fact with all relevant evidence.” 434 F. Supp., at 135. This reasoning, which the Court of Appeals affirmed, amounts to a substitution of individual judgment for the controlling decisions of this Court.9 Were we to accept this use of the supervisory power, we would confer on the judiciary discretionary power to disregard the considered limitations of the law it is charged with enforcing. We hold that the supervisory power does not extend so far.

The judgment of the Court of Appeals is

Reversed.

concurring.

I join the Court’s opinion because Payner — whose guilt is not in doubt — cannot take advantage of the Government’s violation of the constitutional rights of Wolstencroft, for he is not a party to this case. The Court’s opinion makes clear the reason for that sound rule.

Orderly government under our system of separate powers calls for internal self-restraint and discipline in each Branch; this Court has no general supervisory authority over operations of the Executive Branch, as it has with respect to the federal courts. I agree fully with the Court that the exclusionary rule is inapplicable to a case of this kind, but the Court’s holding should not be read as condoning the conduct *738of the IRS “private investigators” disclosed by this record, or as approval of their evidence-gathering methods.

with whom Mr. Justice Brennan and Mr. Justice Blackmun join, dissenting.

The Court today holds that a federal court is unable to exercise its supervisory powers to prevent the use of evidence in a criminal prosecution in that court, even though that evidence was obtained through intentional illegal and unconstitutional conduct by agents of the United States, because the defendant does not satisfy the standing requirement of the Fourth Amendment. That holding effectively turns the standing rules created by this Court for assertions of Fourth Amendment violations into a sword to be used by the Government to permit it deliberately to invade one person’s Fourth Amendment rights in order to obtain evidence against another person. Unlike the Court, I do not believe that the federal courts are unable to protect the integrity of the judicial system from such gross Government misconduct.

I

The facts as found by the District Court need to be more fully stated in order to establish the level of purposeful misconduct to which agents of the United States have sunk in this case. Operation Trade Winds was initiated by the Internal Revenue Service (IRS) in 1965 to gather information about the financial activities of American citizens in the Bahamas. The investigation was supervised by Special Agent Richard Jaffe in the Jacksonville, Fla., office. It was not until June 1972 that the investigation focused on the Castle Bank and Trust Company of the Bahamas. In late October 1972 Jaffe asked one of his informants, Norman Casper, to obtain the names and addresses of the individuals holding accounts with the Castle Bank. Casper set to work soon thereafter. He was already an acquaintance of Michael Wol-*739stencroft, vice president and trust officer of the Castle Bank. Casper knew that Wolstencroft frequently visited the United States carrying a briefcase with documents from the Castle Bank. Casper therefore introduced Wolstencroft to Sybol Kennedy, a private detective who worked for Casper. In early January 1973, Casper learned that Wolstencroft planned a business trip to the United States on January 15, 1973, and that he would have Castle Bank records with him on that trip. Plans for the “briefcase caper,” as Casper called it, began in earnest.

As found by the District Court, Casper discussed the details of the plan with Jaffe on several occasions during the week before Wolstencroft’s trip.1 Casper told Jaffe that he could get the needed documents from Wolstencroft, but that Jaffe would have to supply photographic services. On January 11, Casper specifically informed Jaffe that he planned to enter an apartment and take Wolstencroft’s briefcase. Jaffe then stated that he would have to clear the operation with his superior, Troy Register, Jr., Chief of the IRS Intelligence Division in Jacksonville. Clearance was obtained, and Jaffe told Casper to proceed with the plan.2 Casper called Jaffe the following day and asked if the IRS could refer him to a locksmith who could be “trusted.” Jaffe gave him such a referral.3

*740The plans were finalized by the time of Wolstencroft’s arrival on January 15. Wolstencroft went directly to Sybol Kennedy’s apartment. The couple eventually went to a restaurant for dinner.4 Using a key provided by Kennedy,5 Casper entered the apartment and stole Wolstencroft’s briefcase. Casper then rendezvoused with the IRS-recommended locksmith in a parking lot five blocks from the apartment; the locksmith made a key to fit the lock on the case. Casper took the briefcase and newly made key to the home of an IRS agent. Jaffe had selected that location for the photograph*741ing because it was only eight blocks from the parking lot where Casper met the locksmith and Jaffe knew there was a need to act with haste.6 The briefcase was opened in Jaffe’s presence. Jaffe, Casper, and an IRS photography expert then photographed over 400 documents.7 Casper had arranged for Kennedy and Wolstencroft to be watched on their date, and this lookout called Casper at the IRS agent’s home when the couple finished their dinner. After all the documents had been copied, Casper relocked the briefcase and returned it to Kennedy’s apartment. The entire “caper” lasted approximately one and one-half hours.

The illegalities of agents of the United States did not stop even at that point, however. During the following two weeks, Jaffe told Casper that the IRS needed additional information. Casper therefore sent Kennedy to visit Wol-stencroft in the Bahamas. While there, acting pursuant to Casper’s instructions, Kennedy stole a rolodex file from Wol-stencroft’s office. This file was turned over to Jaffe, who testified in the District Court that he had not cared how the rolodex file had been obtained.8

The IRS paid Casper $8,000 in cash for the services he rendered in obtaining the information about Castle Bank. Casper in turn paid approximately $1,000 of this money to Kennedy for her role in the “briefcase caper” and the theft of the rolodex file.

The “briefcase caper” revealed papers which showed a close relationship between the Castle Bank and a Florida bank. *742Subpoenas issued to that Florida bank resulted in the uncovering of the loan guarantee agreement which was the principal piece of evidence against respondent at trial. It is that loan agreement and the evidence discovered as a result of it that the District Court reluctantly9 suppressed under the Due Process Clause of the Fifth Amendment and under its supervisory powers.

The District Court made several key findings concerning the level of misconduct of agents of the United States in these activities. The District Court found that “the United States, through its agents, Richard Jaffe, and others, knowingly and willfully participated in the unlawful seizure of Michael Wol-stencroft’s briefcase, and encouraged its informant, Norman Casper, to arrange the theft of a rolodex from the offices of Castle Bank.” 434 F. Supp. 113, 120-121 (ND Ohio 1977) (footnotes omitted). The District Court concluded that “the United States was an active participant in the admittedly criminal conduct in which Casper engaged. . . .” Id., at 121. The District Court found that “the illegal conduct of the government officials involved in this case compels the conclusion that they knowingly and purposefully obtained the briefcase materials with bad faith hostility toward the strictures imposed on their activities by the Constitution.” Id., at 130 (footnote omitted) (emphasis in original). The District Court considered the actions of Jaffe and Casper “outrageous,” ibid., because they “plotted, schemed and ultimately acted in contravention of the United States Constitution and laws of Florida, knowing that their conduct was illegal.” Ibid.

The most disturbing finding by the District Court, however, related to the intentional manipulation of the standing requirements of the Fourth Amendment by agents of the United States, who are, of course, supposed to uphold and *743enforce the Constitution and laws of this country. The District Court found:

“It is evident that the Government and its agents, including Richard Jaffe, were, and are, well aware that under the standing requirement of the Fourth Amendment, evidence obtained from a party pursuant to an unconstitutional search is admissible against third parties who’s [sic] own privacy expectations are not subject to the search, even though the cause for the unconstitutional search was to obtain evidence incriminating those third parties. This Court finds that, in its desire to apprehend tax evaders, a desire the Court fully shares, the Government affirmatively counsels its agents that the Fourth Amendment standing limitation permits them to purposefully conduct an unconstitutional search and seizure of one individual in order to obtain evidence against third parties, who are the real targets of the governmental intrusion, and that the IRS agents in this case acted, and will act in the future, according to that counsel. Such governmental conduct compels the conclusion that Jaffe and Casper transacted the ‘briefcase caper’ with a purposeful, bad faith hostility toward the Fourth Amendment rights of Wolstencroft in order to obtain evidence against persons like Payner.” Id., at 131-133 (footnotes omitted).

The Court of Appeals did not disturb any of these findings. 590 F. 2d 206 (CA6 1979) (per curiam). Nor does the Court today purport to set them aside. See ante, at 730-731, n. 3. But cf. ante, at 733-734, n. 5. It is in the context of these findings — intentional illegal actions by Government agents taken in bad-faith hostility toward the constitutional rights of Wolstencroft for the purpose of obtaining evidence against persons such as the respondent through manipulation of the standing requirements of the Fourth Amendment — that the suppression issue must be considered.

*744II

This Court has on several occasions exercised its supervisory powers over the federal judicial system in order to suppress evidence that the Government obtained through misconduct. See, e. g., McNabb v. United States, 318 U. S. 332 (1943); Upshaw v. United States, 335 U. S. 410 (1948); Mesarosh v. United States, 352 U. S. 1 (1956); Mallory v. United States, 354 U. S. 449 (1957); Elkins v. United States, 364 U. S. 206 (1960). Cf. Rea v. United States, 350 U. S. 214 (1956) (supervisory powers used to enjoin federal agent from testifying in state criminal prosecution concerning illegal search and from turning over to the State evidence illegally seized). The rationale for such suppression of evidence is twofold: to deter illegal conduct by Government officials, and to protect the integrity of the federal courts. McNabb v. United States, supra, at 342, 345, 347; Mesatosh v. United States, supra, at 14; Elkins v. United States, supra, at 217, 222-223. Cf. Mapp v. Ohio, 367 U. S. 643, 659-660 (1961) (Fourth and Fourteenth Amendments); Brown v. Illinois, 422 U. S. 590, 599-600 (1975) (Fourth and Fourteenth Amendments); Dunaway v. New York, 442 U. S. 200, 218 (1979) (Fourth and Fourteenth Amendments). The Court has particularly stressed the need to use supervisory powers to prevent the federal courts from becoming accomplices to such misconduct. See, e. g., McNabb v. United States, supra, at 345 (“Plainly, a conviction resting on evidence secured through such a flagrant disregard of the procedure which Congress has commanded cannot be allowed to stand without making the courts themselves accomplices in willful disobedience of law”); Mesarosh v. United States, supra, at 14 (the Court should use its supervisory powers in federal criminal cases “to see that the waters of justice are not polluted”) ; Elkins v. United States, supra, at 223 (federal courts should not be “accomplices in the willful disobedience of a Constitution they are sworn to uphold”).

*745The need to use the Court’s supervisory powers to suppress evidence obtained through governmental misconduct was perhaps best expressed by Mr. Justice Brandéis in his famous dissenting opinion in Olmstead v. United States, 277 U. S. 438, 471-485 (1928):

“Decency, security and liberty alike demand that government officials shall be subjected to the same rules of conduct that are commands to the citizen. In a government of laws, existence of the government will be im-perilled if it fails to observe the law scrupulously. Our Government is the potent, the omnipresent teacher. For good or for ill, it teaches the whole people by its example. Crime is contagious. If the Government becomes a lawbreaker, it breeds contempt for law; it invites every man to become a law unto himself; it invites anarchy. To declare that in the administration of the criminal law the end justifies the means — to declare that the Government may commit crimes in order to secure the conviction of a private criminal — would bring terrible retribution. Against that pernicious doctrine this Court should resolutely set its face.” Id., at 485.

Mr. Justice Brandéis noted that “a court will not redress a wrong when he who invokes its aid has unclean hands,” id., at 483, and that in keeping with that principle the court should not lend its aid in the enforcement of the criminal law when the government itself was guilty of misconduct. “Then aid is denied despite the defendant’s wrong. It is denied in order to maintain respect for law; in order to promote confidence in the administration of justice; in order to preserve the judicial process from contamination.” Id., at 484. See also id., at 469-471 (Holmes, J., dissenting); id., at 488 (Stone, J., dissenting); Lopez v. United States, 373 U. S. 427, 453, n. 3 (1963) (Brennan, J., dissenting).10

*746The reason for this emphasis on the need to protect the integrity of the federal courts through the use of supervisory powers can be derived from the factual contexts in which supervisory powers have been exercised. In large part when supervisory powers have been invoked the Court has been faced with intentional illegal conduct. It has not been the case that “[t]he criminal is to go free because the constable has blundered,” People v. Defore, 242 N. Y. 13, 21, 150 N. E. 585, 587 (1926). In these cases there has been no “blunder” by the Government agent at all; rather, the agent has intentionally violated the law for the explicit purpose of obtaining the evidence in question. Cf. Lopez v. United States, supra, at 440 (supervisory powers should be exercised only if there has been “manifestly improper conduct by federal officials”). If the federal court permits such evidence, the intended product of deliberately illegal Government action, to be used to obtain a conviction, it places its imprimatur upon such lawlessness and thereby taints its own integrity.

The present case falls within that category. The District Court found, and the record establishes, a deliberate decision by Government agents to violate the constitutional rights of Wolstencroft for the explicit purpose of obtaining evidence against persons such as Payner. The actions of the Government agents — stealing the briefcase, opening it, and photographing all the documents inside — were both patently in violation of the Fourth Amendment rights of Wolstencroft11 and plainly in violation of the criminal law.12 The Govern*747ment knew exactly what information it wanted, and it was that information which was stolen from Wolstencroft. Similarly, the Government knew that it wanted to prosecute persons such as Payner, and it made a conscious decision to forgo any opportunity to prosecute Wolstencroft in order to obtain illegally the evidence against Payner and others.13

Since the supervisory powers are exercised to protect the integrity of the court, rather than to vindicate the constitutional rights of the defendant, it is hard to see why the Court today bases its analysis entirely on Fourth Amendment standing rules. The point is that the federal judiciary should not be made accomplices to the crimes of Casper, Jaffe, and others. The only way the IRS can benefit from the evidence it chose to obtain illegally is if the evidence is admitted at trial against persons such as Payner; that was the very point of the criminal exercise in the first place. If the IRS is permitted to obtain a conviction in federal court based almost entirely on that illegally obtained evidence and its fruits, *748then the judiciary has given full effect to the deliberate wrongdoings of the Government. The federal court does indeed become the accomplice of the Government lawbreaker, an accessory after the fact, for without judicial use of the evidence the “caper” would have been for nought. Such a pollution of the federal courts should not be permitted.14

It is particularly disturbing that the Court today chooses to allow the IRS deliberately to manipulate the standing rules of the Fourth Amendment to achieve its ends. As previously noted, the District Court found that “the Government affirmatively counsels its agents that the Fourth Amendment standing limitation permits them to purposefully conduct an unconstitutional search and seizure of one individual in order to obtain evidence against third parties, who are the real targets of the governmental intrusion, and that the IRS agents in this case acted, and will act in the future, according to that counsel.” 434 F. Supp., at 132-133 (emphasis supplied). Whatever role those standing limitations may play, it is clear that they were never intended to be a sword to be used by the Government in its deliberate choice to sacrifice the constitutional rights of one person in order to prosecute another.

The Court’s decision to engraft the standing limitations of the Fourth Amendment onto the exercise of supervisory powers is puzzling not only because it runs contrary to the major purpose behind the exercise of the supervisory powers— to protect the integrity of the court — but also because it appears to render the supervisory powers superfluous. In order to establish that suppression of evidence under the supervisory powers would be proper, the Court would also require *749Payner to establish a violation of his Fourth or Fifth Amendment rights,15 in which case suppression would flow directly from the Constitution. This approach is totally unfaithful to our prior supervisory powers cases, which, contrary to the Court’s suggestion, are not constitutional cases in disguise.

I also do not understand the basis for the Court’s assertion that this is not a case in which the District Court was supervising the administration of justice “among the parties before the bar,” ante, at 735, n. 7, and therefore supervisory powers are inapplicable. Clearly the Government is before the bar. Equally clearly, the Government embarked on this deliberate pattern of lawless behavior for the express purpose of gaining evidence against persons such as Payner, so there can be *750no legitimate claim that the illegal actions are only tangentially related to the present prosecution. Instead, the Government misconduct is at the very heart of this case; without the evidence produced by the illegal conduct, there would have been no case at all, and Payner would never have been brought before the bar. This is simply not a case in which a federal court has attempted to exercise “general supervisory authority over operations of the Executive Branch,” ante, at 737 (Burgee, C. J., concurring). Rather, this is a case where the District Court refused to be made an accomplice to illegal conduct by the IRS by permitting the agency to use the proceeds of its crimes for the very purpose for which they were committed — to convict persons such as Payner.

Contrary to the Courtis characterization, this is also not a case in which there has been “indiscriminate” or “unbending” application of the exclusionary rule. The District Court noted that “exclusion on the basis of supervisory power is only done as a last resort,” 434 F. Supp., at 134, n. 74. That court concluded that suppression was proper only where there had been “purposefully illegal” conduct by the Government to obtain the evidence or where the Government’s conduct was “motivated by an intentional bad faith hostility to a constitutional right.” Id., at 134-135 (footnotes omitted). In this case, both those threshold requirements were met, and the District Court in addition concluded that absent suppression there was no deterrent to continued lawless conduct undertaken by the IRS to facilitate these types of prosecutions.16 This is not “a 'chancellor’s foot’ veto '[by the District *751Court] over law enforcement practices of which it did not approve,” United States v. Russell, 411 U. S. 423, 435 (1973); Hampton v. United States, 425 U. S. 484, 490 (1976) (plurality opinion). As my Brother Powell noted on a prior occasion: “The fact that there is sometimes no sharply defined standard against which to make these judgments '[of fundamental fairness] is not itself a sufficient reason to deny the federal judiciary’s power to make them when warranted by the circumstances. . . . Nor do I despair of our ability in an appropriate case to identify appropriate standards for police practices without relying on the ‘chancellor’s’ ‘fastidious squeamishness or private sentimentalism.’ ” Hampton v. United States, supra, at 495, n. 6 (concurring in judgment). That appropriate case has arrived, and the Court should prevent the Government from profiting by use in the federal courts of evidence deliberately obtained by illegal actions taken in bad-faith hostility to constitutional rights.

I would affirm the judgment of the Court of Appeals and suppress the fruits of the Government’s illegal action under the Court’s supervisory powers.17 Accordingly, I dissent.