Opinion for the Court filed by Circuit Judge GINSBURG.
Concurring opinion filed by Circuit Judge EDWARDS.
Opinion concurring in part and dissenting in part filed by Circuit Judge STARR.
RUTH BADER GINSBURG, Circuit Judge:
This case concerns the “absolute” immunity of federal law enforcement officers from common law tort liability, and their “qualified” immunity from “constitutional tort” liability. In a civil action for compensatory and punitive damages, plaintiff-appellee James T. Martin charged officers of the United States Capitol Police1 with malicious prosecution, abuse of process, and violation of rights guaranteed him under the fifth amendment to the United States Constitution.2 The federal officers moved to dismiss Martin’s claims on immunity grounds. Citing Barr v. Matteo, 360 U.S. 564, 79 S.Ct. 1335, 3 L.Ed.2d 1434 (1959), the officers asserted absolute immunity from suit on Martin's common law claims; featuring Harlow v. Fitzgerald, 457 U.S. 800, 102 S.Ct. 2727, 73 L.Ed.2d 396 (1982), they asserted qualified immunity from suit for constitutional torts. The district court denied the officers’ threshold, immunity-based dismissal motions and ordered the parties to proceed with discovery.3
We hold that Martin’s common law tort claims must he dismissed because the federal officers legitimately asserted absolute immunity and were not tenably charged with action beyond the outer perimeter of their law enforcement responsibilities. We remand Martin’s constitutional claims for reconsideration in light of the pleading directions for qualified immunity cases indicated in Hobson v. Wilson, 737 F.2d 1 (D.C. [33]*33Cir.1984), cert. denied sub nom. Brennan v. Hobson, 470 U.S. 1084, 105 S.Ct. 1843, 85 L.Ed.2d 142 (1985), and in this opinion.
I.
On November 27, 1982, the Ku Klux Klan held a march in Washington, D.C. The event attracted public controversy and media attention. Plaintiff Martin became a figure in the day’s incidents. As Martin alleged in the instant litigation, local and national news media captured on film an assault on him by District of Columbia Metropolitan Police Department (MPD) officers wherein Martin was “shoved ... through a plate glass window [and beaten] with nightsticks about the head, shoulders, and arms.”4 Martin does not claim that any of the present defendants, all U.S. Capitol Police officers, participated in the November 27, .1982 incident. He does assert, however, that after photographs of the MPD officers’ assault were broadcast, various MPD officers and the Capitol Police defendants “conspired to develop an unlawful scheme to deflect attention from their actions and to deter plaintiff from seeking to vindicate the violation of his rights.” 5 Allegedly in furtherance of this scheme, Capitol Police officers arrested Martin and charged him with burglary, destruction of a police cruiser and theft of police property; he was subsequently acquitted of the latter two offenses and convicted, at his trial for burglary, of the lesser included offense of unlawful entry.
On February 21, 1985, Martin commenced this action. His suit in the district court included in the array of defendants the District of Columbia, MPD officers alleged to have participated in the assault or its aftermath, and Capitol Police officers alleged to have conspired with MPD officers to impede Martin’s access to justice. While the instant appeal was sub judice, Martin reached a settlement with the District of Columbia and the MPD defendants, and all claims against those defendants have been voluntarily dismissed.
The federal officer (Capitol Police) defendants had promptly moved in the district court for dismissal of all claims asserted against them. First confronting the common law tort claims, the Capitol Police officers cited Barr v. Matteo, 360 U.S. 564, 79 S.Ct. 1335, 3 L.Ed.2d 1434 (1959), as the pathmarking precedent establishing their absolute immunity. The district judge denied the officers’ request for instant dismissal of the common law tort claims. She pointed to Martin’s allegations that the federal defendants had “exceeded their authority by conspiring to violate the plaintiff’s rights,”6 and had “resorted to ‘manifestly excessive means' to achieve their objectives.”7 The court further remarked that “at this early stage, dismissal or summary judgment is plainly inappropriate”; “[h]aving asserted a claim that could potentially defeat the defendants’ immunity claim, the plaintiff is entitled to conduct discovery to determine if an issue of material fact exists.”8
The Capitol Police officers also failed to gain early dismissal of Martin’s claims of constitutional violations. Their plea to this branch of the complaint was qualified immunity. The district court stated that qualified immunity exonerates federal officials only when their conduct “does not violate clearly established statutory or constitutional rights of which a reasonable person would have known.” Harlow v. Fitzgerald, 457 U.S. 800, 818, 102 S.Ct. 2727, 2738, 73 L.Ed.2d 396 (1982). Martin’s allegations of “a police conspiracy whose aim was to deter plaintiff from seeking to vindicate his legal rights,” taken as true for purposes of ruling on defendants’ motion for summary judgment, indicated the deprivation of two clearly established constitutional rights: the right of access to the [34]*34courts and due process.9 When the law in question is clearly established, the district court observed citing this court’s words, “the Government actor is presumed to have known about it [and] summary judgment in his favor must be denied.” Hobson, 737 F.2d at 25. The Capitol Police officer defendants, by this appeal, seek reversal of the district court’s rulings refusing to dismiss the action in response to the officers’ pleas of absolute and qualified immunity.10
II.
All parties, and the district court, agreed that if the Capitol Police were engaged in discretionary activity within the “outer perimeter of their line of duty,” then plaintiff’s common law claims for malicious prosecution and abuse of process would be barred by the doctrine of absolute immunity. See Barr, 360 U.S. at 575, 79 S.Ct. at 1341; McKinney v. Whitfield, 736 F.2d 766, 768-69 (D.C.Cir.1984).11
The district court, in refusing to dismiss the common law claims, emphasized Martin’s allegations of an unlawful conspiracy among the federal and municipal defendants. The conspiracy theory, the court thought, placed the federal officers’ conduct beyond the pale or “outer perimeter” of their authority, and thus let down the absolute immunity bar. In its initial order denying summary adjudication, the court stated: “[T]he plaintiff has clearly alleged that the federal defendants exceeded their authority by conspiring to violate the plaintiff's rights.” 12 In response to the defendants’ renewed motion, the court further commented: “[T]he conspiracy allegations brought against the federal defendants, if true, constitute acts that fail to satisfy the ‘functional’ test set out in McKinney ” insofar as the “immunity’s justifying purpose [which] may best be defined as ‘the effective functioning of government’ [is not] ‘related closely’ to an alleged conspiracy to deprive an individual of basic consti[35]*35tutional rights.” 13 We find the conspiracy theory inadequate to overcome the absolute immunity defense; we set out our reasoning below.
No government officer, of course, can be “authorized” to act unlawfully. But if the scope of an official’s authority or line of duty were viewed as coextensive with the official’s lawful conduct, then immunity would be available only where it is not needed; in effect, the immunity doctrine would be “completely abrogate[d].” Briggs v. Goodwin, 569 F.2d 10, 15 (D.C. Cir.1977), cert. denied, 437 U.S. 904, 98 S.Ct. 3089, 57 L.Ed.2d 1133 (1978); see also Gregoire v. Biddle, 177 F.2d 579, 581 (2d Cir.1949) (proper inquiry is whether “the occasion [was] such as would have justified the act, if [the defendant] had been using his power for any of the purposes on whose account it was vested in him”) (emphasis added), cert. denied, 339 U.S. 949, 70 S.Ct. 803, 94 L.Ed. 1363 (1950).
The core of Martin’s complaint in this case, before one can reach his conspiracy theory, is that the defendants were animated by improper motives in deciding to pursue his arrest and indictment. While such official pursuit of an individual may indeed invade a recognized legal interest, we stress that the pursuer would not on that account lose his absolute immunity from common law tort liability, for immunity of the absolute kind adheres “even when the [officer] is accused of acting maliciously and corruptly.” Pierson v. Ray, 386 U.S. 547, 554, 87 S.Ct. 1213, 1218, 18 L.Ed.2d 288 (1967); see also Barr, 360 U.S. at 575, 79 S.Ct. at 1341. So long as the officer “performed the kind of act not ‘manifestly or palpably beyond his authority,’ but rather ‘having more or less connection with the general matters committed by law to his control or supervision,’ ” Briggs, 569 F.2d at 11-16, quoting Spalding v. Vilas, 161 U.S. 483, 498, 16 S.Ct. 631, 637, 40 L.Ed. 780 (1896), absolute immunity clings to the officer’s actions. Cf. Imbler v. Pachtman, 424 U.S. 409, 419 n. 13, 96 S.Ct. 984, 989 n. 13, 47 L.Ed.2d 128 (1976) (distinguishing the significance of the defendant’s motivations in the absolute and qualified immunity contexts). The only overt acts in which the defendants are al-” leged to have engaged are squarely within both the statutory authority conferred on the U.S. Capitol Police, see 40 U.S.C. § 212a (1982), and the general ambit of law enforcement duties, i.e., participating in the decision to initiate criminal proceedings, and swearing out and executing an arrest warrant.14
Martin’s conspiracy allegations cannot change the analysis, for “[accusing [the defendants] jointly, or by way of a count in conspiracy, gives [plaintiff’s] case no more virtue than if he had proceeded against each [defendant] singly.” Cooper v. O’Connor, 99 F.2d 135, 142 (D.C.Cir.), cert. denied, 305 U.S. 643, 59 S.Ct. 146, 83 L.Ed. 414 (1938). The essence of a conspiracy is an agreement to perform an unlawful act. Eliminating consideration of motive, as the Barr line of cases does, it is hardly unlawful for federal and municipal police officers to agree to pursue in concert lawful means of apprehending a suspect; such an agreement surely would not fall outside the scope of defendants’ general law enforcement duties. See id. at 143 (officers’ “combining to perform [law enforcement] acts was lawful, [and] so long as each is proceeding within the scope of his official duties” plaintiff’s suit is barred).15
[36]*36The district court stressed the “formative stage” of the proceedings in denying the defendants’ dispositive motions:
Discovery has not yet begun, and thus it is not yet clear whether evidence exists to support the plaintiff’s allegations---[A]t this early stage, dismissal or summary judgment is plainly inappropriate. Having asserted a claim that could potentially defeat the defendants’ immunity claim, the plaintiff is entitled to conduct discovery to determine if an issue of material fact exists.
Memorandum Order, Civil Action No. 85-0624, at 5-6 (D.D.C. Sept. 25, 1985), J.A. at 59-60. We think the “sue now, discover if you have a claim later,” approach is particularly inappropriate in the context at hand.
Allowing discovery to proceed so as to enable Martin to establish “whether evidence exists to support” his allegation and “if an issue of material fact exists” is not the “firm application” of Rules 12 and 56 the Supreme Court envisioned in cases of this kind. See Butz, 438 U.S. at 508, 98 S.Ct. at 2911. Discovery is itself one of the burdens from which defendants are sheltered by the immunity doctrine. See Mitchell, 105 S.Ct. at 2815 (absolute immunity is not “a mere defense to liability”; its “essence” is “its possessor’s entitlement not to have to ... stand trial or face the other burdens of litigation ”) (emphasis added); Elliott v. Perez, 751 F.2d 1472, 1478 (5th Cir.1985) (“subjecting officials to trial, traditional discovery, or both concerning acts for which they are likely immune undercuts the protection from governmental disruption which official immunity is purposed to afford”); cf. Harlow, 457 U.S. at 814, 102 S.Ct. at 2736 (“social costs” against which immunity guards “include the expenses of litigation [and] the diversion of official energy from pressing public issues”).
Plaintiff’s burden, when confronted with a properly supported summary judgment motion, is to “set forth specific facts showing that there is a genuine issue for trial.” Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 106 S.Ct. 2505, 2511, 91 L.Ed.2d 202 (1986) (emphasis added). A plaintiff’s hope that further evidence may develop prior to trial is an “insufficient basis upon which to justify the denial of [defendants’] motion.” Contemporary Missions, Inc. v. United States Postal Service, 648 F.2d 97, 107 (2d Cir.1981). This general rule bears particularly firm application in the immunity context in light of the policy basis for shielding public officials from civil suit. Plaintiff Martin has come forward with no specific facts to suggest that defendants, if one does not inquire into their motives, were acting outside the scope of their authorized responsibilities. See Morrison v. City of Baton Rouge, 761 F.2d 242, 248 (5th Cir. 1985). And motive inquiry, as we earlier observed, is incompatible with Barr -style absolute immunity.
In sum, the record now stands without “evidence from which reasonably minded jurors might draw an inference” that defendants’ actions were unprotected by the absolute shield doctrine in point. See Anderson, 106 S.Ct. at 2510. Martin has proffered no such evidence, nor has he even hinted at what such evidence might be. Therefore, defendants’ motion for summary judgment dismissing Martin’s common law claims must be granted.16
[37]*37III.
ks earlier indicated, we follow the route traveled by the parties and the district court in approaching Martin’s common law tort claims under an “absolute immunity” rubric, and his constitutional tort claims under a “qualified immunity” headline. If the double standard is problematic, see 5 K. Davis, Administrative Law Treatise 97-100, 109-36 (2d ed. 1984), it is nonetheless the framework High Court precedent currently delineates. See Harlow; Butz, 438 U.S. at 494-98, 98 S.Ct. at 2904-06. Having set out above our analysis of the common law tort/absolute immunity facet of this case, we turn now to the question whether the Capitol Police officers are entitled to summary judgment on their qualified immunity defense to Martin’s Constitution-based claims.
Martin alleges, in substance, that the decision to arrest and prosecute him, in which the Capitol Police officers participated, was calculated to stop him from vindicating his legal rights. In particular, he asserts that federal and District police force members sought to impede his access to court to recover for his mistreatment by MPD officers on the Klan march day, November 27, 1982. If his allegations are true, he has indeed suffered an injury of constitutional dimension. See, e.g., United States v. Goodwin, 457 U.S. 368, 372, 102 S.Ct. 2485, 2488, 73 L.Ed.2d 74 (1982) (“[it is] ‘patently unconstitutional’ [for an official] to pursue a course of action whose objective is to penalize a person's reliance on his legal rights”) (quoting Bordenkircher v. Hayes, 434 U.S. 357, 363, 98 S.Ct. 663, 668, 54 L.Ed.2d 604 (1978)); Silver v. Cormier, 529 F.2d 161, 163 (10th Cir.1976) (right of access to courts is guaranteed by due process clause; official’s action designed to impede that right is actionable under 42 U.S.C. § 1983); Dellums v. Powell, 490 F.Supp. 70, 74 (D.D.C.1980), aff'd, 660 F.2d 802 (D.C.Cir.1981) (allegation of malicious prosecution undertaken for express purpose of coercing plaintiffs to refrain from exercising constitutional rights states Bivens -type claim); Jennings v. Shuman, 567 F.2d 1213, 1220 (3d Cir.1977) (malicious abuse of process is “by definition” a denial of due process).
For constitutional claims of the kind Martin has attempted to state, the official actor’s intent, motive, or purpose is the critical element. Defendants in this case are quite right when they describe Martin’s charge that the Capitol Police “acted unlawfully” as “coextensive with [Martin’s] allegation of unconstitutional motive, for ... only a bad motive ... could transform [defendants’] otherwise objectively lawful conduct [i.e., their participation in arresting and initiating criminal proceedings against Martin] into unlawful conduct.” Brief of Appellants at 27 n. 11. We do not agree with defendants’ further position, however, that under the Harlow decision now guiding the qualified immunity inquiry, as under Barr -style absolute immunity, an official’s state of mind is never relevant, so that Martin is totally disarmed and the Capitol Police must prevail based simply and solely on the “objective reasonableness” of their conduct.
[38]*38Defendants’ position exposes a fault or vulnerability in the current law of qualified immunity. We explain the problem as we see it. The Supreme Court in Harlow held that “government officials performing discretionary functions, generally are shielded from liability for civil damages insofar as their conduct does not violate clearly established rights of which a reasonable person would have known.” Harlow, 457 U.S. at 818, 102 S.Ct. at 2738 (emphasis added); see also Davis v. Scherer, 104 S.Ct. 3012, 3018, 82 L.Ed.2d 139 (1984) (“Whether an official may prevail in this qualified immunity defense depends upon the ‘objective reasonableness of [his] conduct as measured by reference to clearly established law.’ No other ‘circumstances’ are relevant to this issue of qualified immunity.”) (footnotes omitted); Mitchell, 105 S.Ct. at 2816 (defendant entitled to dismissal on qualified immunity plea unless plaintiff states a claim of violation of clearly established law). The district judge in the instant case, endeavoring to heed the High Court’s instruction, observed that the constitutional rights in question had “been established by case precedent for years”; consequently, she denied defendants’ motions for summary judgment.
A reasonable law enforcement officer would surely know that an arrest or prosecution undertaken to deter an individual from pursuing bona fide civil claims would trample upon clearly established constitutional rights. Defendants do not suggest otherwise. Their focus is not on Harlow’s “conduct ... violating] clearly established ... rights” reference. See Harlow, 457 U.S. at 818, 102 S.Ct. at 2738. Instead, they underscore Harlow’s concern to confine court examination to “the objective reasonableness of an official’s conduct.” See id.; see also Davis, 104 S.Ct. at 3018 (“Harlow ... rejected the inquiry into state of mind in favor of a wholly objective standard ”) (emphasis added); Mitchell, 105 S.Ct. at 2811 (“Harlow ... purged qualified immunity doctrine of its subjective components”). Martin has advanced only “bare allegations of malice,” defendants say, and Harlow instructs that such undocumented assertions “should not suffice to subject government officials either to the costs of trial or to the burdens of broad-reaching discovery.” Harlow, 457 U.S. at 817-18, 102 S.Ct. at 2738.
The “clearly established law” and “objective reasonableness” facets of current qualified immunity doctrine tug in opposite directions where, as here, the “clearly established law” itself contains a subjective component. If Harlow and progeny do not ever permit inquiry into a government official’s state of mind, defendants’ motion must be granted forthwith, for in Martin’s case, absent unconstitutional motive for the plaintiff's arrest and prosecution, no clearly established law has been violated. We do not think, however, that the Harlow decisional line reaches that far.
Harlow involved plaintiff Fitzgerald’s allegation that, in violation of his rights under the first amendment, he had been dismissed in “retaliation for his truthful testimony before a congressional Committee.” Nixon v. Fitzgerald, 457 U.S. 731, 736, 740, 102 S.Ct. 2690, 2694, 2696, 73 L.Ed.2d 349 (1982). The substantive law governing that claim required Fitzgerald to establish that his protected speech was a “substantial or motivating factor” in his dismissal. Mt. Healthy City School District Board of Education v. Doyle, 429 U.S. 274, 287, 97 S.Ct. 568, 576, 50 L.Ed.2d 471 (1977). Had the Court intended its formulation of the qualified immunity defense to foreclose all inquiry into the defendants’ state of mind, the Court might have instructed the entry of judgment for defendants Harlow and Butterfield on the constitutional claim without further ado. In fact, the Court returned the case to the district court in an open-ended remand, a disposition hardly consistent with a firm intent to delete the state of mind inquiry from every constitutional tort calculus.
Our recent decision in Hobson v. Wilson, 737 F.2d 1, 29-31 (D.C.Cir.1984), devotes some pages to the topic “Pleading Unconstitutional Motive.” Our endeavor in Hob-son to specify pleading' requirements for cases involving allegations of unconstitutional motive is at odds with the “state-of-[39]*39mind-is-never-relevant” interpretation of the qualified immunity doctrine.
Hobson implicitly recognized that the “motive never counts” interpretation would radically alter the existing balance with respect to claims of constitutional deprivations. In effect, the alteration would insulate officials from liability in all cases in which the substantive prescription makes the official’s state of mind an essential component of the alleged constitutional violation.17 So major a change, we believe, should not be embraced in the absence of unambiguous instructions from the High Court. Accord Kenyatta v. Moore, 744 F.2d 1179, 1185 (5th Cir.1984) (Harlow “did not entirely eliminate subjective inquiry from every qualified immunity analysis”), cert. denied, 471 U.S. 1066, 105 S.Ct. 2141, 85 L.Ed.2d 498 (1985); Harris v. Eichbaum, 642 F.Supp. 1056, 1065 (D.Md.1986) (“To completely foreclose any inquiry into the officials’ subjective motivation in such cases would unfairly deprive potential victims of constitutional abuses of a remedy in a manner which this court is of the opinion the Harlow Court did not intend.”). See also Halperin v. Kissinger, 807 F.2d 180, 186 (D.C.Cir.1986) (restating this circuit’s position that subjective inquiry is not proscribed where plaintiff’s claim, as here, rests upon the “presence of an invalidating intent unrelated to knowledge of the law {e.g., racial or political antagonism)”). We adhere to Hobson, and hold that when the governing precedent identifies the defendant’s intent (unrelated to knowledge of the law) as an essential element of plaintiff's constitutional claim, see Halperin, 807 F.2d at 185-87, the plaintiff must be afforded an opportunity to overcome an asserted immunity with an offer of proof of the defendant’s alleged unconstitutional purpose.18
At the same time, we do not lose sight of the goal the Harlow Court had in view when it set an objective standard in the qualified immunity context. That prime goal is the prompt termination of vexatious litigation against public officials. Harlow, 457 U.S. at 815-16, 102 S.Ct. at 2736-37. Mindful of Harlow’s rationale, we attempted in Hobson to strike a fair balance between 1) the “need to protect officials who are required to exercise their discretion and the related public interest in encouraging the vigorous exercise of official authority,” Butz, 438 U.S. at 506, 98 S.Ct. at 2911, and 2) the countervailing need to provide a “realistic avenue for vindication of constitutional guarantees.” Harlow, 457 U.S. at 814, 102 S.Ct. at 2736. The instant case illustrates the difficulties trial courts may encounter in grappling with appellate opinions on slippery subjects. Aware that our abstract statements, like the Supreme Court’s, sometimes elude concrete application, we next essay further amplification and clarification.
[40]*40IV.
In Celotex Corp. v. Catrett, 477 U.S. 317, 106 S.Ct. 2548, 2555, 91 L.Ed.2d 265 (1986), the Supreme Court emphasized that “[s]ummary judgment procedure is properly regarded not as a disfavored procedural shortcut, but rather as an integral part of the Federal Rules as a whole, which are designed ‘to secure the just, speedy, and inexpensive determination of every action.’ ” (quoting Fed.R.CivP. 1). Accord Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 106 S.Ct. 2505, 91 L.Ed.2d 202 (1986). As Catrett and Anderson clarify, it is not the moving party’s burden to disprove unsupported claims of his opponent; that consideration has added force when, as in the. area of concern in this case, the reasons for swiftly terminating insubstantial lawsuits are particularly strong. See Harlow, 457 U.S. at 814, 102 S.Ct. at 2736.
Defendants here, we think it safe to conclude, have said and produced enough in the first instance to cross into summary judgment territory.19 By affidavit, the Capitol Police officers have attested to their good faith. They have shown, in support of the “objective reasonableness” of their conduct, the at least arguable existence of probable cause to arrest Martin, and they have cited in corroboration Martin’s subsequent indictment and conviction.20 We therefore turn our attention to plaintiff's side. In response to defendants’ prima facie showing of entitlement to qualified immunity, has Martin demonstrated, or should he be accorded further opportunity to demonstrate, the existence of a “genuine issue of material fact”?
As Hobson indicated, plaintiffs must “produce some factual support for their claim [of unconstitutional motive] to avert dismissal.” Hobson, 737 F.2d at 30; see also Elliott, 751 F.2d at 1482 (plaintiff must state “with particularity all material facts on which he contends he will establish his right to recovery, which will include detailed facts supporting the contention [41]*41that the plea of immunity cannot be sustained”).21 The factual support plaintiff Martin alleged in response to defendants’ motions is contained in these recitations:
—the defendants participated in a meeting on November 29, 1982, to review videotapes of the November 27 beating incident;
—plaintiff was the “only person identified and marked for prosecution solely as a result of that review”;
—the defendants “worked closely with” the U.S. Attorney in deciding to arrest and prosecute plaintiff;
—an “abnormally large and complex team of officers” effected plaintiff’s arrest.
Plaintiff’s Opposition to Defendants’ Motion for Summary Judgment at 10.
This enumeration is insufficient, we hold, to demonstrate the existence of a “genuine issue” as to the reasonableness and good faith of the Capitol Police. We recognize that in an ordinary case, where “the inferences to be drawn from the underlying facts ... must be viewed in the light most favorable” to the opponent of the summary judgment motion, see United States v. Diebold, 369 U.S. 654, 655, 82 S.Ct. 993, 994, 8 L.Ed.2d 176 (1962), circumstantial evidence of this quality might allow a plaintiff to remain in court. See Anderson, 106 S.Ct. at 2510 (dispute over material fact is “ ‘genuine’ ... if the evidence is such that a reasonable jury could return a verdict for the nonmoving party”); see also Adickes v. S.H. Kress & Co., 398 U.S. 144, 157-58, 90 S.Ct. 1598, 1608-09, 26 L.Ed.2d 142 (1970) (where party opposing summary judgment motion introduced evidence which would permit a jury to “infer from the circumstances” that an actionable conspiracy had taken place, moving party’s “failure to foreclose” that possibility mandated denial of motion).
This is not, however, an ordinary case. While we hold that plaintiffs may present claims that depend upon proof of unconstitutional motive, we must take care not to reimpose “precisely the burden Harlow sought to prevent.” Hobson, 737 F.2d at 29. Before Harlow, “an official’s subjective good faith ha[d] been considered to be a question of fact ... inherently requiring resolution by a jury.” Harlow, 457 U.S. at 816, 102 S.Ct. at 2737. That approach produced results “incompatible with [the Supreme Court’s] admonition in Butz that insubstantial claims should not proceed to trial.” Id. at 815-16, 102 S.Ct. at 2737. The Supreme Court’s “strong condemnation of insubstantial suits against government officials,” Krohn v. United States, 742 F.2d 24, 31 (1st Cir.1984), impels the application of a standard more demanding of plaintiffs when public officer defendants move for summary judgment on the basis of their qualified immunity.
We set out, as best as we can capture it, that more demanding standard. Where the defendant’s subjective intent is an essential component of plaintiff’s claim, once defendant has moved for pretrial judgment based on a showing of the objective reasonableness of his actions, then plaintiff, to avert dismissal short of trial, must come forward with something more than inferential or circumstantial support for his allegation of unconstitutional motive. That is, some direct evidence that the officials’ actions were improperly motivated must be produced if the case is to proceed to trial. See Harris, 642 F.Supp. at 1066.
Limitations of this kind on the range of inferences a trial court may draw are not extraordinary. Where an antitrust conspiracy is alleged, for example, “mistaken inferences ... are especially costly, because they chill the very conduct the antitrust laws are designed to protect.” Matsushita [42]*42Electric Industrial Co., Ltd. v. Zenith Radio Corp., 475 U.S. 574, 106 S.Ct. 1348, 1360, 89 L.Ed.2d 538 (1986); see also Monsanto Co. v. Spray-Rite Service Corp., 465 U.S. 752, 762-64, 104 S.Ct. 1464, 1470-71, 79 L.Ed.2d 775 (1984). Therefore, to survive a motion for summary judgment, a plaintiff “must present evidence ‘that tends to exclude the possibility’ that the alleged conspirators acted independently.” Matsushita, 106 S.Ct. at 1357, quoting Monsanto, 465 U.S. at 764, 104 S.Ct. at 1471; cf. First National Bank v. Cities Service Co., 391 U.S. 253, 280-90, 88 S.Ct. 1575, 1588-93, 20 L.Ed.2d 569 (1968) (circumstantial evidence of conspiracy insufficient to take the case to the jury where inference of nonconspiratorial conduct equally plausible); Smith v. Northern Michigan Hospitals, Inc., 703 F.2d 942, 956 (6th Cir.1983) (inference that anticompetitive conduct resulted from concerted activities and improper motive not permissible where “persuasive evidence” of legitimate purpose opposed inference); Paul Kadair, Inc. v. Sony Corp., 694 F.2d 1017, 1027 (5th Cir.1983) (evidence of parallel conduct as basis for inference of conspiracy will not suffice to block summary judgment, for defendant unless plaintiff comes forward with “some ‘plus’ factor which tends to indicate that the asserted unilateral behavior was not such in fact”).
To recapitulate, plaintiff Martin’s fact recitations, as they now stand, are insufficiently probative of the alleged unconstitutional motive to warrant denial of the Capitol Police officers’ motion for summary judgment. Martin has indeed produced more than merely “his own subjective belief that the defendants] intended him harm.” Barker v. Norman, 651 F.2d 1107, 1127 (5th Cir.1981). The record contains no direct evidence, however, that Martin’s arrest and prosecution were impermissibly designed to deter him from exercising his legal rights. Thus Martin has not overcome the objective indicia of good faith proffered by defendants.
We do not put down our pen yet, and mandate immediate entry of judgment for the Capitol Police officers, for the approach to pretrial development of cases such as this one was far from clear and certain when the district court made its rulings in Martin’s favor. Fairness therefore requires that we afford plaintiff in the case at hand a last chance to make the showing necessary to survive defendants’ summary judgment motion.22
Summary judgment, in the mine-run of cases, is generally inappropriate “until all discovery has been completed.” City of Rome v. United States, 450 F.Supp. 378, 384 (D.D.C.1978), aff'd, 446 U.S. 156, 100 S.Ct. 1548, 64 L.Ed.2d 119 (1980); see also Grove v. Mead School District No. 354, 753 F.2d 1528, 1532 (9th Cir.1985), cert. denied, — U.S. -, 106 S.Ct. 85, 88 L.Ed.2d 70 (1986). Reasonable opportunity for discovery, we have commented, “is particularly important where crucial facts are in the control of the opposing party.” Black Panther Party v. Smith, 661 F.2d 1243, 1278 (D.C.Cir.1981), vacated as moot, 458 U.S. 1118, 102 S.Ct. 3505, 73 L.Ed.2d 1381 (1982); see also Hobson, 737 F.2d at 30-31 (“in some circumstances plaintiffs are able to paint only with a very broad and speculative brush at the pre-discovery stage”). We have noted that creditable [43]*43pleas of official immunity remove cases from the mine-run category. See supra p. 1435. Nonetheless, we are alert to this reality: Allowing plaintiffs to raise certain claims of unconstitutional motive could become an empty gesture were we to impose a blanket restriction on all discovery prior to the resolution of the qualified immunity issue on summary judgment.23
While leaving some space for discovery, and, thereafter, the opportunity to re-plead,24 we reiterate here the necessity, underscored in recent Supreme Court decisions, to minimize the burdens imposed upon government officials:
What is a federal trial judge to do? One thing he may not do: face it as just another lawsuit in which the notice pleading’s liberal policy of F.R.Civ.P. 8 counts on pre-trial discovery to ascertain the factual basis for the claim[.] ... Allowing pretrial depositions, especially those taken adversely of the government official to ferret all of his actions and the reasons therefor ... would defeat and frustrate the function and purpose of the ... immunity[.] ... [U]se of liberal discovery to establish the basis of a claim is directly at odds with the Court’s direction in Harlow that government officials entitled to immunity be freed from the burdens, the stress, the anxieties and the diversions of pretrial preparations.
Elliott, 751 F.2d at 1479 (footnotes omitted); see also Morrison, 761 F.2d at 244 (“liberal notions of notice pleading must ultimately give way to immunity doctrines that protect us from having the work of our public officials dulled or disrupted by participation in ... the pretrial development of civil lawsuits”). To balance these concerns properly, district courts will need to employ with particular care and sensibility their large authority to exercise control over discovery. See Fed.R.Civ.P. 26(b); 8 C. Wright & A. Miller, Federal Practice and Procedure § 2036 at 267-68 (1970).
The Federal Rules permit the district judge to defer decision on a summary judg[44]*44ment application to permit the opponent of the motion to obtain affidavits, take depositions or pursue other discovery. Fed.R. Civ.P. 56(f).25 The Rules also instruct district judges to allow pleading amendments “freely” and at any time “when justice so requires.” Fed.R.Civ.P. 15(a). Those Rules could be utilized here, with limitations appropriate “to ensure that [the defendants will not be subjected to] unnecessary involvement in further litigation.” Black Panther Party, 661 F.2d at 1278. Thus, the district court could permit particularized interrogation of the defendants for the circumscribed purpose of ascertaining whether there is any substance to Martin’s assertions concerning when and why the municipal and federal officers decided to arrest and prosecute him. Martin asserts that the decision to pursue him was made at the November 29, 1982 meeting at which MPD and Capitol Police officers reviewed videotapes of November 27 Klan march day events. See supra pp. 1434-35. His interrogatories or questions on deposition, accordingly, should focus precisely on the participants in, and what occurred, at, the November 29 session.
Ultimately, when summary judgment for defendants on Martin’s constitutional tort claims is reconsidered, the district judge should recall that Martin may not take his case to the jury simply because defendants’ state of mind is at issue and jurors might disbelieve defendants’ testimony. See Anderson, 106 S.Ct. at 2514; cf. Dyer v. MacDougall, 201 F.2d 265 (2d Cir.1952) (L. Hand for the court; J. Frank dissenting). At that point, Martin will have only one way to remain in court underHobson. If, after the limited discovery we have specified, he has not presented an amended complaint containing “nonconclusory allegations of evidence of [unconstitutional] intent,” see Hobson, 737 F.2d at 29, his constitutional tort claims must be dismissed.
CONCLUSION
While we part company with the district court in this case, we recognize that the Supreme Court precedent with which we deal in this opinion is still evolving, may be variously interpreted, and sometimes slips from the grasp of lower court (and therefore fallible) judges in the courts of appeals and district courts.26
For the reasons stated in the opinion, we vacate the orders on review and instruct on remand (1) dismissal of the common law tort claims asserted against the Capitol Police officers, because those officers possess absolute immunity from suit on those claims; (2) deferral of decision on defendants’ request for summary judgment on the constitutional tort claims alleged in the complaint, pending (a) plaintiff’s pursuit of discovery, limited in the manner indicated in this opinion, and (b) an opportunity for plaintiff’s prompt presentation thereafter of an amended complaint meeting the standard set out in Hobson, 737 F.2d at 29.
Orders vacated and case remanded to the district court for proceedings consistent with this opinion.
Section IV was vacated on grant of rehearing en banc.