AMBRO, Circuit Judge.
This case raises a significant constitutional question of first impression in this Circuit: whether federal courts have authority, consistent with the separation of powers, to enjoin the executive branch from filing an indictment. Although federal courts have this authority in narrow circumstances, we conclude that this is not
such a case and therefore reverse the District Court’s judgment to the contrary.
I.
A. Background
Appellee Stolt-Nielsen, S.A., through its subsidiary StolWNielsen Transportation Group Ltd. (collectively “Stolt-Nielsen” or the “Company”), is a leading supplier of parcel tanker shipping services. In March 2002, StolWNielsen’s general counsel, Paul O’Brien, resigned. According to a complaint O’Brien filed against Stolt-Nielsen in Connecticut Superior Court in November 2002, and a subsequent article in
The Wall Street Journal,
O’Brien advised his superiors of illegal collusive trading practices between Stolt-Nielsen and two of its competitors, and resigned after the Company failed to take action to resolve the problem. On receiving O’Brien’s November 2002 complaint, StolWNielsen hired John Nannes, a former Deputy Assistant Attorney General in the Antitrust Division at the U.S. Department of Justice, to conduct an internal investigation of possible antitrust violations by the Company and advise it regarding any criminal liability.
On November 22, 2002, Nannes met with the chairman of Stolb-Nielsen’s tanker division, Samuel Cooperman. Cooper-man informed Nannes that O’Brien “rais[ed] some antitrust concerns” in early 2002, and that in response Stolt-Nielsen revised its antitrust compliance policy and disseminated it to its employees and competitors. Cooperman also told Nannes that he believed an internal investigation would demonstrate that the Company was in violation of federal antitrust laws and asked Nannes about the possibility of leniency from the Department of Justice. With Cooperman’s permission, Nannes spoke with an Antitrust Division official later that day to inquire about amnesty if Stolh-Nielsen were to admit its violations, and the Government informed him that an investigation had already begun.
Specifically, Nannes inquired about possible protection for StolL-Nielsen and its officers under the Antitrust Division’s Corporate Leniency Policy. Under this Policy, the Government agrees “not [to] charg[e] a firm criminally for the activity being reported” if (in the case of an applicant who comes forward after an investigation has begun) seven conditions are met: (1) the applicant is the first to report the illegal activity; (2) the Government does not, at the time the applicant comes forward, have enough information to sustain a conviction; (3) the applicant, “upon its discovery of the illegal activity being reported, took prompt and effective action to terminate its part in the activity”; (4) the applicant’s report is made “with candor and completeness and provides full, continuing and complete cooperation” with the Government’s investigation; (5) the applicant confesses to illegal anticompetitive conduct as a corporation and not merely through individual confessions by corporate officers; (6) the applicant makes restitution where possible; and (7) the Government determines that granting leniency to the applicant would “not be unfair to others.” The officers and directors of the corporation who assist with the investigation are considered for immunity from prosecution on the same basis as if they had come forward individually.
B.
The Conditional Leniency Agreement
The Government informed Nannes that Stolt-Nielsen would not be eligible for amnesty under the Corporate Leniency Policy if O’Brien’s departure was involuntary and due to his exposure of the Company’s antitrust violations. Nannes assured the Government that O’Brien left voluntarily and detailed the changes to the Company’s
antitrust policy that were implemented in response to O’Brien’s concerns. During the ensuing investigation, Nannes learned that between 1998 and 2001 a Stolt-Niel-sen executive, Andrew Pickering, exchanged customer allocation lists with two of Stolt-Nielsen’s competitors, presumably for the purpose of apportioning customers among the companies and restraining competition. In January 2003, Pickering’s successor, appellee Richard Wingfield, provided Nannes with four such lists, which confirmed that StolWNielsen had indeed engaged in illegal anticompetitive behavior. Nannes promptly turned these lists over to the Government, which entered into a Conditional Leniency Agreement (the “Agreement”) with Stolt-Niel-sen on January 15, 2003.
Under the terms of the Agreement, the Government agreed “not to bring any criminal prosecution against [Stolt-Niel-sen] for any act or offense it may have committed prior to the date of this [Agreement] in connection with the anti-competitive activity being reported.” This promise was, of course, subject to Stolt-Nielsen’s strict compliance with the aforementioned conditions, “[s]ubject to verification [by the Government] and subject to [StolWNielsen’s] full, continuing and complete cooperation.” The Agreement further stated:
If the Antitrust Division at any time determines that [Stolh-Nielsen] has violated this Agreement, [it] shall be void.... Should the Antitrust Division revoke the conditional acceptance of [Stolb-Nielsen] into the Corporate Leniency Program, the Antitrust Division may thereafter initiate a criminal prosecution against [StolUNielsen], without limitation. Should such a prosecution be initiated, any documentary or other information provided by [Stolt-Nielsen], as well as any statements or other information provided by any current or former director, officer, or employee of [Stolt-Nielsen] to the Antitrust Division pursuant to this Agreement, may be used against Stolt-Nielsen in any such prosecution.
The Agreement also provided that the Government would not prosecute officers and directors of the Company who “admit their knowledge of, or participation in, and fully and truthfully cooperate with the Antitrust Division in its investigation of the anticompetitive activity being reported.” Specifically, that cooperation entailed: (1) producing all documents and records requested by the Government; (2) being available for Government interviews; (3) “responding fully and truthfully to all inquiries of the [Government] ... without falsely implicating any person or intentionally withholding any information”; (4) voluntarily providing any information or materials not requested by the Government that were nonetheless relevant to the investigation; and (5) testifying under oath when asked by the Government. It concluded with a standard integration clause: “This letter constitutes the entire agreement between the [parties], and supersedes all prior understandings, if any, whether oral or written, relating to the subject matter herein.”
Using the information provided by Stolt-Nielsen and its executives (including Wingfield), the Government secured guilty pleas from StolWNielsen’s co-conspirators, resulting in prison sentences for individual executives at those companies and fines totaling $62 million.
C.
The Government Terminates the Agreement
In the weeks following execution of the Agreement, the Government’s investigation revealed that StolWNielsen’s participation in the conspiracy persisted for
several months after O’Brien raised his concerns to Cooperman in early 2002. The Government concluded that Stolt-Nielsen, and Wingfield in particular, continued to collude unlawfully with competitors until November 2002. Based on this information, the Government informed Nannes on April 8, 2003 that it was suspending Stolt-Nielsen’s obligations under the Agreement and considering withdrawing the grant of conditional leniency entirely because the Company did not take “prompt and effective action to terminate its part in the anticompetitive activity being reported upon discovery of the activity,” as required by the Agreement. One of Wingfield’s subordinates, Bjorn Jansen, then admitted that the anticompetitive agreement between Stolt-Nielsen and its competitors was still in place in the fall of 2002, despite having told Nannes that such conduct ceased in March 2002 once the Company learned of O’Brien’s allegations and issued its new antitrust policy.
In June 2003, the Government concluded that Wingfield had not fulfilled his obligations under the Agreement because he never informed the Government that his unlawful communications with Stolt-Niel-sen’s competitors did pot cease in March 2002 when Stolt-Nielsen issued its ,new antitrust policy. On June 24, 2003, the Government charged Wingfield by criminal complaint with violating the Sherman Act, 15 U.S.C. § 1. The Government withdrew its grant of conditional leniency to Stolt-Nielsen on March 2, 2004, and announced that it intended to indict the Company and Wingfield for violations of the Sherman Act.
D.
District Court Proceedings
Shortly before the Government revoked Stolt-Nielsen’s conditional leniency, the Company and Wingfield filed complaints in the United States District Court for the Eastern District of Pennsylvania seeking enforcement of the Agreement and an injunction preventing the Government from filing indictments against them. The Government agreed to postpone its indictments of both parties pending the District Court’s consideration of the complaints.
The District Court bifurcated the proceedings into two phases. In Phase One, the Court considered whether Stolt-Nielsen’s alleged conduct between March and November 2002 violated the terms of the Agreement. If so, Phase Two would determine whether the conduct actually occurred. During the Phase One proceedings, the District Court consolidated consideration of Stolt-Nielsen’s and Wingfield’s requests for preliminary injunctions with the trial on the merits, and heard testimony from Nannes and James Griffin, a Deputy Assistant Attorney General in the Antitrust Division at the Department of Justice.
In January 2005, the District Court granted judgment in favor of Stolt-Nielsen and Wingfield and permanently enjoined the Government from indicting either of them for violations of the Sherman Act.
See Stolir-Nielsen S.A .v. United States,
352 F.Supp.2d 553 (E.D.Pa.2005). The Court concluded that the Government could not unilaterally rescind the Agreement without a judicial determination that Stolt-Nielsen and Wingfield breached it,
an issue appropriate for consideration before indictment “because if an indictment were later determined to have been wrongfully secured, it would be too late to prevent the irreparable consequences.”
Id.
at 560. The Court further found that the Agreement did not specify a discovery date and instead granted amnesty for activity before January 15, 2003, the date on which it was signed. Indeed, it found that “the date when [StolN-Nielsen] ended, its participation [in the conspiracy] was never clearly established,”
id.
at 562 n. 10, and therefore, in light of the Agreement’s integration clause, “DOJ, especially because it drafted the agreement, cannot depend upon a tacit understanding of what it contends was meant [to be the discovery date] but was not memorialized in the integrated agreement.”
Id.
at 562. The Court concluded:
The agreement immunizes [Stolt-Nielsen] from prosecution for activity prior to January 15, 2003. Now DOJ contends the activity had to have stopped at an earlier unspecified date that is not set forth in the agreement. Had it wanted to fix the date sometime before January 15, 2003, it could have replaced the words “to the date of this letter” with the earlier date it now contends the parties contemplated.
... [The Government’s] goals [in concluding the Agreement with Stolt-Niel-sen] were to pursue [Stolt-Nielsen’s] co-conspirators and break up the conspiracy. It got what it had bargained for in the agreement.... Now that it has received the benefit of the bargain, DOJ cannot prosecute the party that incriminated itself when it delivered the evidence DOJ used to accomplish its goals.
Id.
E.
Appeal
On appeal, the Government contends that the District Court erred in two respects. First, it argues that federal courts lack jurisdiction to enjoin the executive branch from filing an indictment. Second, it asserts that the District Court erred in holding that StolWNielsen’s and Wing-field’s actions between March and November 2002 did not violate the terms of the Agreement. For the reasons that follow, the District Court’s judgment is reversed and the case remanded to that Court so that it may dismiss the appellees’ complaints.
II.
We review a District Court’s grant or denial of a permanent injunction for abuse of discretion,
United States v. Bell,
414 F.3d 474, 478 (3d Cir.2005), but exercise plenary review over the District Court’s underlying legal conclusions.
Freethought Soc’y of Greater Phila. v. Chester County,
334 F.3d 247, 255-56 (3d Cir.2003). A District Court’s determination whether a cooperation agreement has been breached is a legal conclusion.
United States v. Baird,
218 F.3d 221, 229 (3d Cir.2000). All findings of fact are reviewed for clear error.
See Bell,
414 F.3d at 478 (reviewing findings of fact related to a permanent injunction for clear error);
Baird,
218 F.3d at 229 (reviewing findings of fact related to a cooperation agreement for clear error).
III.
The Supreme Court has observed that the executive branch “has exclusive authority and absolute discretion to decide whether to prosecute a case,”
United States v. Nixon,
418 U.S. 683, 693, 94 S.Ct. 3090, 41 L.Ed.2d 1039 (1974), and the Government therefore argues that courts lack jurisdiction to enjoin a criminal prosecution.
See United States v. Cox,
342 F.2d 167, 171 (5th Cir.1965)
(en
banc) (“It follows, as an incident of the constitutional separation of powers, that the courts are not to interfere with the free exercise of the discretionary powers of the attorneys of the United States in their control over criminal prosecutions.”).
There is an exception to this general rule, however, in order to avoid a chilling effect on constitutional rights.
See Dom-browski v. Pfister,
380 U.S. 479, 486-87, 85 S.Ct. 1116, 14 L.Ed.2d 22 (1965) (recognizing that the threat of criminal prosecution creates the potential for a serious chill upon First Amendment rights);
Hynes v. Grimes Packing Co.,
337 U.S. 86, 98-99, 69 S.Ct. 968, 93 L.Ed. 1231 (1949) (recognizing that the threat of prosecution may deny fishermen the right to earn a livelihood);
Truax v. Raich,
239 U.S. 33, 38-39, 36 S.Ct. 7, 60 L.Ed. 131 (1915) (recognizing that the threat of prosecution may lead to an unconstitutional denial of the right to earn a livelihood and to continue employment). The Supreme Court has typically applied the exception in the First Amendment context, and in such cases has recognized,
[a] criminal prosecution under a statute regulating expression usually involves imponderables and contingencies that themselves may inhibit the full exercise of First Amendment freedoms .... The assumption that defense of a criminal prosecution will generally assure ample vindication of constitutional rights is unfounded in such cases.... [W]e have not thought that the improbability of successful prosecution makes the case different. The chilling effect upon the exercise of First Amendment rights may derive from the fact of the prosecution, unaffected by the prospects of its success or failure.
Dombrowski,
380 U.S. at 486-87, 85 S.Ct. 1116, 14 L.Ed.2d 22 (1965);
see also Ashcroft v. ACLU,
542 U.S. 656, 670-71, 124 S.Ct. 2783, 159 L.Ed.2d 690 (2004) (upholding preliminary injunction against criminal enforcement of the. Child Online Protection Act because,
inter alia,
“[wjhere a prosecution is a likely possibility, yet only an affirmative defense is available, speakers may self-censor rather than risk the perils of trial”).
It is also well established that the Government must adhere strictly to the terms of agreements made with defendants — including plea, cooperation, and immunity agreements — to the extent the agreements require defendants to sacrifice constitutional rights.
See, e.g., Santobello v. New York,
404 U.S. 257, 262, 92 S.Ct. 495, 30 L.Ed.2d 427 (1971);
United States v. Hodge,
412 F.3d 479, 485 (3d Cir.2005) (“The government must adhere strictly to the terms of the bargains it strikes with defendants. Because defendants entering pleas forfeit a number of constitutional rights, courts are compelled to scrutinize closely the promise made by the government in order to determine whether it has been performed.” (citation and internal quotation marks omitted)).
Therefore, although the Government is certainly correct that, there is no free-ranging jurisdiction on the part of courts to enjoin criminal prosecutions, that authority does exist in limited situations where the mere threat of prosecution would inhibit the exercise of constitutional freedoms. Federal courts also have jurisdiction to consider, and hold the Government to, the terms of agreements it makes with defendants. The question thus becomes whether, even when there is no risk of a chilling effect on constitutional rights, the existence of an immunity agreement provides federal courts with authority to
enjoin a federal criminal prosecution in order to avoid the filing of an indictment.
The District Court relied on a Seventh Circuit case,
United States v. Meyer,
157 F.8d 1067 (7th Cir.1998), as authority for conducting a pre-indictment review of the Agreement before us.
See Stoltr-Nielsen,
352 F.Supp.2d at 560-61. In
Meyer,
the Seventh Circuit stated, in
dicta,
that “the preferred procedure, absent exigent circumstances, would be for the government to seek relief from its obligations under the immunity agreement prior to indictment. Since the government is required to obtain a judicial determination of a defendant’s breach prior to trial, it is but a
de minimis
inconvenience for the government to secure that determination pre-indictment.” 157 F.3d at 1077.
We have no quarrel with the Seventh Circuit’s observation that, in many circumstances, a pre-indictment determination of the parties’ obligations under an immunity agreement might be useful. We point out, however, that no federal court (including the Seventh Circuit) has held that a pre-indictment determination is constitutionally required. Indeed, notwithstanding its
dicta
regarding the “preferred procedure,” the
Meyer
Court held the defendant was constitutionally “entitled to a judicial determination of his breach before being deprived of his interest in the enforcement of an immunity agreement,” and that this “interest” was in not being
convicted,
rather than not being
indicted. Id.
at 1076-77.
As the Court noted, “a post-indictment evidentiary hearing on the defendant’s alleged breach was sufficient to satisfy due process.”
Id.
at 1076 (citing
United States v. Verrusio,
803 F.2d 885, 889 (7th Cir.1986)).
Other immunity agreements that have promised not to charge or otherwise criminally prosecute a defendant, like the agreement at issue in this case, have likewise been construed to protect the defendant against conviction rather than indictment and trial.
See, e.g., Heike v. United States,
217 U.S. 423, 431, 30 S.Ct. 539, 54 L.Ed. 821 (1910) (construing the Sherman Act’s immunity provision, which protected a testifying witness from being “prosecuted,”
see
Act of Feb. 25, 1903, ch. 755, § 1, 32 Stat. 854, 904 (repealed 1970), “not ... to secure to a person making such a plea immunity from prosecution, but to provide him with a shield against successful prosecution, available to him as a defense”);
United States v. Bailey,
34 F.3d 683, 690-91 (8th Cir.1994) (holding that an agreement “not to prosecute” protected the defendant from “the inherent risk of conviction and punishment as a result of the trial, not the trial itself’);
United States v. Bird,
709 F.2d 388, 392 (5th Cir.1983) (“While the agreement is phrased in terms of nonprosecution, its essence is a promise of immunity. [The defendant’s] immunity from punishment will not be lost simply because she is forced to stand trial.”).
This distinction is grounded in the understanding that simply being indicted and forced to stand trial is not generally an injury for constitutional purposes but is rather “one of the painful obligations of citizenship.”
Cobbledick v. United States,
309 U.S. 323, 325, 60 S.Ct. 540, 84 L.Ed. 783 (1940);
see Deaver v. Seymour,
822 F.2d 66, 69 (D.C.Cir.1987) (“Although it is surely true that an innocent person may suffer great harm to his reputation and property by being erroneously accused of a crime, all citizens must submit to a criminal prosecution brought in good faith so that larger societal interests may be preserved.”).
As the District of Columbia
Circuit noted in
Deaver,
in the absence of a chilling effect on constitutional rights, the adversary system “afford[s] defendants, after indictment, a federal forum in which to assert their defenses — including those based on the Constitution. Because these defendants are already guaranteed access to a federal court, it is not surprising that subjects of federal investigation have never gained injunctive relief against federal prosecutors.” 822 F.2d at 69-70.
Although this interpretation of agreements “not to prosecute” may seem coun-terintuitive, it comports with the federal courts’ general reluctance to recognize a right not to be indicted or tried in the absence of an express constitutional (or perhaps statutory) command. In the context of interlocutory appeals challenging the Government’s authority to proceed with a prosecution, for example, the Supreme Court has allowed those appeals only in very limited circumstances. For example, the Double Jeopardy Clause,
see
U.S. Const. amend: V (“[N]or shall any person be subject for the same offense to be twice put in jeopardy of life or limb .... ”), protects interests that are “wholly unrelated to the propriety of any subsequent conviction,” in that it provides a “guarantee against being twice put to
trial
for the same offense.”
Abney v. United States,
431 U.S. 651, 661, 97 S.Ct. 2034, 52 L.Ed.2d 651 (1977) (emphasis added). Because the prohibition against double jeopardy affords a defendant the right to “contest[ ] the very authority of the Government to hale him into court to face
trial on the charge against him,” it necessitates an exception to the “firm congressional policy against interlocutory or ‘piecemeal’ appeals.”
Id.
at 656, 659, 97 S.Ct. 2034. Likewise, the Speech and Debate Clause,
see
U.S. Const. art. I, § 6, cl. 1 (“[F]or any speech or debate in either House, [members of Congress] shall not be questioned in any other Place.”), has been construed “to protect Congressmen not only from the consequences of litigation’s results but also from the burden of defending themselves,” thus allowing interlocutory appeals from denials of claims of immunity under that Clause.
Helstoski v. Meanor,
442 U.S. 500, 508, 99 S.Ct. 2445, 61 L.Ed.2d 30 (1979) (internal quotation marks omitted).
Our case is not an interlocutory appeal, but the Supreme Court’s cases in that field are instructive because they reinforce the narrowness of a defendant’s ability to challenge the Government’s decision to pursue a prosecution. Just as the authority to enjoin criminal enforcement of a law regulating speech is grounded in the overriding need to avoid a chilling effect on the exercise of core constitutional rights, so too does the right not to be prosecuted recognized in
Abney
and
Helstoski
stem from express textual commands in the Constitution that prohibit any interference with the rights against double jeopardy or of members of Congress to speak freely in legislative session.
In other contexts, however, courts have refused to allow interlocutory appeals to stop prosecutions.
See, e.g., United States v. Hollywood Motor Car Co.,
458 U.S. 263, 268, 102 S.Ct. 3081, 73 L.Ed.2d 754 (1982)
(per
curiam) (holding that a vindictive prosecution claim may not be raised in an interlocutory appeal to stop an ongoing prosecution, but rather may only be raised after the defendant has been convicted, because “reversal of the conviction and ... the provision of a new trial free of prejudicial error normally are adequate means of vindicating the constitutional rights of the accused”);
Parr v. United States,
351 U.S. 513, 519, 76 S.Ct. 912, 100 L.Ed. 1377 (1956) (holding that the mere fact a defendant would have to “hazard a trial” in one venue before challenging the District Court’s order transferring his case from a different venue did not warrant an interlocutory appeal);
cf. United States v. P.H.E., Inc.,
965 F.2d 848, 855 (10th Cir.1992) (noting that, in comparing the vindictive prosecution claim in
Hollywood Motor Car
to a vindictive prosecution claim based on the defendants’ dissemination of constitutionally protected speech, “[t]he wrong alleged is similar, but the right sought to be vindicated is not” because the “procedural rule [at issue in
Hollywood Motor Car
] raises concerns distinct from and less pressing than the courts’ obligation to protect the First Amendment right not to be subjected to a pretextual prosecution”). Indeed, when a district court rejects prior to trial a defendant’s contention that an immunity agreement bars his conviction, the defendant may not avail himself of an interlocutory appeal challenging that decision; rather, “the availability of dismissal after final judgment will adequately protect and secure for the defendant the benefit of his bargain under the nonprosecution agreement if he is entitled to it.”
Bailey,
34 F.3d at 691;
see Bird,
709 F.2d at 392 (same).
Here, Stolh-Nielsen and Wingfield may interpose the Agreement (as a defense to conviction) in a pre-trial motion.
See, e.g., Meyer,
157 F.3d at 1077 (“In accordance with due process, [the defendant] was entitled to a judicial determination that he had breached the agreement before being subjected to the risk of conviction. The district court’s pretrial [but post-indictment] evidentiary hearing satisfied this require
ment.”).
But their contention that the immunity they purportedly received under the Agreement precludes an indictment in the first place is belied by precedent, and we see no compelling reason to reach a different result in this case.
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“[A] suit in equity does not lie where there is a plain, adequate and complete remedy at law ... [that is] as complete, practical and efficient as that which equity could afford.”
Terrace v. Thompson,
263 U.S. 197, 214, 44 S.Ct. 15, 68 L.Ed. 255 (1923). Here, Stolt-Nielsen and Wingfield have a practical and efficient— and indeed complete — legal remedy available to them,
ie.,
access to a federal forum post-indictment in which they may assert the Agreement as a defense. Separation-of-power concerns thus counsel against using the extraordinary remedy of enjoining the Government from filing the indictments. Although courts have carved out a narrow exception to this rule in those cases in which the very act of filing an indictment may chill constitutional rights, this case does not implicate that concern. Instead, we are guided by other cases from the Supreme Court and Courts of Appeals that lead us to conclude that non-prosecution agreements may not form the basis for enjoining indictments before they issue.
In this context, we conclude that the District Court lacked authority to employ the extraordinary remedy of enjoining the Government’s indictments of Stolb-Nielsen and Wingfield. The judgment is therefore reversed and the case remanded with the instruction that the District Court dismiss their complaints with prejudice.