Opinion for the Court filed by Circuit Judge WALD.
Abscam defendant and former Congressman Richard Kelly appeals from the District Court’s denial of his motion for a new trial based on newly-discovered evidence in the form of several affidavits by an FBI informant, James Davenport. Davenport's affidavits state that, in late July or August of 1980, he posed as a disgruntled former FBI agent, visited Congressman Kelly’s office, discussed defense strategy with Kelly and his lawyer, and stole some documents relating to their trial strategy. We find that the District Court’s failure to develop an evidentiary record before denying Kelly’s motion warrants a remand. Kelly’s motion for bail pending appeal is denied.
I. Background
This is Congressman Kelly’s third trip to this tribunal. Following conviction after a jury trial on bribery and other charges stemming from the FBI’s Abscam investigation, the District Court dismissed the indictment against Kelly on due process grounds. This court subsequently reversed the dismissal and reinstated the jury verdict.
United States v. Kelly,
Kelly’s motion for a new trial was filed pursuant to Fed.R.Crim.P. 33 and included several affidavits from former FBI informant James Davenport. In October of 1984, while in prison, Davenport had sworn out an affidavit for a different proceeding which cited his involvement with the Kelly case as one among many events in an eighteen year life of crime. Oct. 3, 1984, Davenport Affidavit (“Aff.”). After learning of the affidavit through a letter from a reporter, Kelly Aff. ¶ 14, Kelly contacted Davenport, who subsequently swore out several affidavits for use in Kelly’s new trial motion which described a 1980 visit to Kelly’s office, conversations with Kelly and his counsel about the forthcoming trial, and Davenport’s theft of defense documents during the course of the visit. Davenport’s *133 allegations are described in more detail below; the incident described in the affidavits may be briefly summarized as follows.
Davenport first became an FBI informant in a Florida drug investigation in the late 1970’s. After being placed in the federal witness protection program, Davenport remained in touch with FBI agents Harold Copus and Russ Duger who, in the early part of 1980, introduced him to another FBI informant, Mel Weinberg. Oct. 3, 1984, Davenport Aff. at 3-15; Nov. 1984 Davenport Aff. IIK 3-5; Feb. 20, 1985, Davenport Aff. at ¶1¶ 4-9. Weinberg, a convicted con man, worked with the FBI to set up the Abscam operation and posed as the financial adviser for the fictitious Abdul Enterprises.
Kelly I,
During the spring of 1980, Davenport and Weinberg agreed on a scheme to infiltrate the defense camps of the Abscam defendants, in which Davenport would contact the Abscam defendants and, after identifying himself as a disgruntled ex-FBI informant, offer to testify on their behalf about how Abscam worked. Davenport would also steal information about defense strategies and turn it over to Weinberg, who would sell it to the FBI. The two men would split Weinberg’s bonuses and Davenport’s witness fees. Feb. 20, 1985, Davenport Aff. tl 21.
In accordance with this plan, Davenport travelled to Washington, D.C. in July-August 1980 and, using the name of James Driggers, offered his services to Congressman Kelly. Davenport succeeded in meeting with both Kelly and his attorney, Anthony Battaglia, spending most of the afternoon in Kelly’s office discussing Kelly’s trial defense strategy, and stealing copies of some legal papers including a witness list. These stolen documents were passed on to Weinberg. Feb. 20, 1985, Davenport Aff. 111122-28; Dec. 5,1984, Davenport Aff. 113; Kelly Aff. 11117-13; Battaglia Aff. 1Í1Í 6-11. Kelly and Battaglia subsequently decided not to use Davenport’s services and forgot the incident until four years later when they were informed of Davenport’s affidavit.
II. Motion for a New Trial
A. Standards Governing New Trial Motion
The Federal Rules of Criminal Procedure allow a motion for a new trial based on newly-discovered evidence to be filed within two years after final judgment. Fed.R.Crim.P. 33. The grant or denial of such a motion is committed to the sound discretion of the trial judge and an appellate court will reverse only if the district court misapplied the law or abused its discretion.
United States v. Mangieri,
(1) [T]he evidence must have been discovered since the trial; (2) the party seeking the new trial must show diligence in the attempt to procure the newly discovered evidence; (3) the evidence relied on must not be merely cumulative or impeaching; (4) it must be material to the issues involved; and (5) of such nature that in a new trial it would probably produce an acquittal.
Mangieri,
The
Thompson
test does not, however, govern motions for a new trial when the newly-discovered evidence indicates that the original trial was marred by a sixth amendment or
Brady
violation. In the
Brady
context, the Supreme Court has substituted a test focusing primarily on the materiality of the undisclosed evidence, with a “reasonable probability” of acquittal as an essential element of materiality.
See infra
at 135. In the sixth amendment context, the Court has refused to apply traditional standards governing new trial
*134
motions because “[t]he high standard for newly discovered evidence claims presupposes that all the essential elements of a presumptively accurate and fair proceeding were present in the proceeding whose result is challenged.”
Strickland v. Washington,
Thus, we must evaluate Kelly’s factual allegations to assess whether he has made enough of a showing to warrant a new trial or a hearing on his new trial motion. A motion for a new trial can ordinarily be decided on the basis of affidavits without an evidentiary hearing,
United States v. Kearney,
Kelly’s motion for a new trial was based on newly-discovered evidence that, he alleged, demonstrated violations of his sixth amendment rights and his fifth amendment rights under Brady v. Maryland. His motions were supported by affidavits from himself, his attorney, and Davenport. He originally requested a hearing on the motion but withdrew the request after the government failed to contest the relevant factual issues by submitting counteraffidavits. The government did file an opposition to Kelly’s motion denying that Davenport was acting as a federal agent and that prosecutors had seen the stolen documents, but without any accompanying affidavits to back up their denials. The District Court denied Kelly’s motion from the bench without explanation.
The District Court abused its discretion by failing to hold an evidentiary hearing or to otherwise resolve the critical factual disputes raised by Davenport’s affidavits and the government’s negative responses to them. Kelly’s affidavits portray his claims “materially and resolutely, and evinc[e], a capability of mounting a serious challenge.”
United States v. Pinkney,
Although the District Court’s failure to adequately develop a factual record is a sufficient ground for our remand, we are also concerned that the trial court may have erred by applying improper legal standards, at least regarding Kelly’s sixth amendment claim. A district court’s denial of a new trial motion may, of course, be overturned for “ ‘misapplication of the law.’”
Mangieri,
B. The Brady Claim
Kelly charges that the government violated his due process rights by failing to provide him with potentially exculpatory or impeaching information as required by
Brady v. Maryland,
In opposition to Kelly’s Brady claim, government counsel made a series of unsworn representations in its briefs and in open court as to the “true state of affairs” regarding Davenport’s letter and the subsequent FBI interview. Government counsel argued that they were not required to reveal information which was fabricated in the first place and which, in any event, they were not aware of at the time of Kelly’s trial. 2 The government cannot, however, establish this or any other “true state of affairs” by mere assertions without affidavits. Whether the suppressed information was fabricated and whether the prosecution knew about it during the first trial are issues of fact for the District Court to decide.
These factual disputes warrant a remand; Kelly’s allegations are sufficiently meritorious to warrant evidentiary proceedings on his Brady claim. The affidavits and documentary evidence indicate that Davenport wrote directly to the U.S. Attorney for the District of Columbia on October 10, 1980, stating that he had been in the witness protection program, had met with Congressman Kelly and his lawyer, and had important information about Kelly’s Abscam case. At a subsequent FBI interview on November 5, the FBI learned that Davenport had been an FBI informant and questioned him about the substance of the meeting with Kelly. Yet neither the letter nor the FBI report was disclosed to Kelly despite the fact that each document existed during discovery prior to trial and each mentioned Kelly’s name over a dozen times. Kelly argued in the new trial proceeding below that the letter and the FBI report would have led him to Davenport and also would have served as evidence of violations of his fourth and sixth amendment rights. New Trial Tr. 19, 28.
Because the only argument presented to the District Court in response to these allegations was an unsworn denial of their truth, we find that the District Court’s refusal to entertain the new trial motion amounted to an abuse of discretion and the motion must be remanded to the trial court for further proceedings. On remand, the usual standards for a new trial are not controlling because “the fact that such evidence was available to the prosecutor and not submitted to the defense places it in a different category than if it had simply been discovered from a neutral source after trial.”
United States v. Agurs,
C. The Sixth Amendment Claim
Kelly contends that his sixth amendment rights were violated when Davenport, a government agent, invaded his defense strategy sessions and stole relevant and important documents. 4 He argues that the fact of the intrusion and theft alone prove a constitutional violation and entitle him to a new trial without any further showing that his first trial was prejudiced in any way by the incident. The government, on the other hand, argues that Kelly must establish the high degree of prejudice embodied in the Thompson new trial standard, which requires a defendant to establish that a new trial will probably produce an acquittal.
Both parties seem to have missed the legal mark as to the applicable legal standards. Kelly has overlooked the Supreme Court’s decision in
Weatherford v. Bursey,
Kelly argues that he need show
no prejudice
resulting from Davenport’s trickery because the cases establish a
per se
rule that any invasion of the attorney-client relationship by a government informant constitutes a violation of the sixth amendment. He relies primarily on
Caldwell v. United States,
In
Weatherford v. Bursey,
however, the Court rejected Kelly’s reading of
*137
Black
and
Hoffa
as creating a
per se
rule of presumed prejudice from any governmental intrusion. Bypassing the question of whether
Caldwell
and
Coplon
were good law, the Court specifically noted that
Hoffa
had only
assumed
their correctness for purposes of making a point in dicta.
While the lower courts are in agreement that these are the factors to be evaluated to establish the requisite prejudice, they are far from unanimous on the crucial question of what combination of these factors is necessary to make out a sixth amendment violation.
5
This court has yet to enter the fray.
See United States v. Kember,
While we cannot specify with certainty the quantum of prejudice Kelly must establish under Weatherford, however, we are confident that he has made enough of a factual showing to merit further evidentiary development. Kelly has made no allegations under the first Weatherford factor as to use of tainted evidence, in part because he does not know what documents were taken by Davenport. Davenport’s affidavits do, however, make sufficient allegations to warrant additional evidentiary development under the second and third Weatherford factors — intentional intrusion and disclosure of confidential information about defense strategy to the prosecution.
Davenport alleged that he was working as an FBI informant when he was introduced to FBI informant Weinberg through FBI agent Harold Copus in order for Weinberg to teach him “the ends and outs of
*138
sting operations.” Feb. 20, 1985, Davenport Aff. ¶¶ 6-9. Weinberg and he developed a plan “to infiltrate the defense teams of the ABSCAM defendants.”
Id.
at ¶ 21. Davenport implemented this plan by visiting Congressman Kelly’s office.
Id.
at ¶¶ 22-28. Thus, Davenport’s affidavits make adequate allegations under the second
Weatherford
factor — he and Weinberg were government informants who assumed for themselves the task of “learnpng] what [they] could about the defendant’s defense plans ... and acted accordingly.”
Weatherford,
Davenport also alleged that he stole copies of legal papers from Kelly’s attorney, including a witness list. Feb. 20, 1985, Davenport Aff. ¶ 28. Kelly had filed the witness list with the District Court for in camera inspection with a motion for a change of venue. The list named all of the witnesses Kelly planned to call along with brief summaries of their proposed testimony. Battaglia Aff. ¶ 11; Motion for Change of Venue, attached to Motion for a New Trial. Davenport passed the stolen documents along to Weinberg, but never found out what Weinberg did with them. Feb. 20, 1985, Davenport Aff. ¶ 28. Later in 1980, while Davenport was in jail, he noticed that Kelly’s trial was going on and wrote to the United States Attorney for the District of Columbia, informing him that he had met with Congressman Kelly and his lawyer to discuss Kelly’s Abscam case. Oct. 3, 1984, Davenport Aff. at 33; Letter, Appendix B to Opposition to Defendant Kelly’s Motion for a New Trial. In response to that letter, FBI agents interviewed Davenport on November 5, 1980, about his visit to Kelly’s office and his allegation that one of Kelly’s aides had access to confidential prosecution documents. Oct. 3, 1984, Davenport Aff. at 33; FBI Report, Appendix C to Opposition to Defendant Kelly’s Motion for a New Trial. While this evidence does not establish conclusively that the third Weather-ford factor has been met — that the prosecution had seen the documents — such a showing would have been nearly impossible for Kelly to make. Davenport’s letter to the U.S. Attorney about the incident and his efforts to trace the stolen, confidential documents as far as he could are enough to warrant a sworn response by the government, which iá in a far better position to establish that no member of the prosecution team had ever seen the stolen documents.
Given Davenport’s allegations, some kind of hearing or other evidentiary process was needed to resolve disputed facts. We therefore see no recourse but to remand Kelly’s motion for a new trial to the District Court for further factual development and resolution. Whether the requisite evidence can be developed through affidavits or requires an in-court hearing remains in the sound discretion of the District Court. If Kelly demonstrates sufficient prejudice to establish a sixth amendment violation, the government may, of course, defeat the new trial motion by showing that the constitutional violation was harmless error. To do that, the government must “prove beyond a reasonable doubt that the error complained of did not contribute to the verdict obtained.”
Chapman v. California,
*139 III. Motion for Bail Pending Appeal
Kelly sought a legal furlough from prison to appear on his own behalf at oral argument and also moved for release on bail pending appeal pursuant to 18 U.S.C. § 3143(b) (Supp.II 1984). By order dated January 30, 1986, this panel denied the motion for a furlough and deferred consideration of the motion for bail pending appeal. Following oral argument, Kelly renewed his request for bail pending appeal and requested expedited consideration of his motion.
Apart from the fact that Kelly’s appeal has now been heard and decided, Kelly’s bail motion fails because the Bail Reform Act of 1984 does not provide for bail pending appeal of the denial of a new trial motion made pursuant to Fed.R. Crim.P. 33. The Act applies only to “a person who has been found guilty of an offense and sentenced to a term of imprisonment, and who has filed an appeal or a petition for a writ of certiorari.” 18 U.S.C. § 3143(b) (Supp. II 1984). Kelly’s motion is not part of a direct appeal but a new trial motion based on newly-discovered evidence and § 3143(b) does not apply to an appeal from the denial of such a motion.
See United States v. Dansker,
Criminal defendants who have exhausted their direct appeals and are serving sentences may seek release while litigating new trial motions based on newly-discovered evidence via a motion under 28 U.S.C. § 2255 (1982).
Dansker,
Because Kelly has not filed a § 2255 motion and because § 3143(b) of the Bail Reform Act is inapplicable to an appeal from the denial of Kelly’s new trial motion, neither this court nor the District Court presently has the authority to release Kelly on bail. His motion for bail pending appeal is accordingly denied.
IV. Conclusion
The District Court’s failure to develop an evidentiary record and resolve crucial factual disputes renders its denial of Kelly’s new trial motion an abuse of discretion. Factual findings are particularly important where, as here, the governmental misconduct charged is extraneous to the trial and so is not documented in the trial record.
See United States v. Chagra,
The District Court’s denial of Kelly’s motion for a new trial is accordingly reversed and remanded for further proceedings in accordance with this opinion. Kelly’s motion for bail pending appeal is denied.
So ordered.
Notes
. Although
Strickland
and
Pinkney
involved ineffective assistance of counsel claims, their reasoning applies equally to sixth amendment cases involving government intrusions into the defense camp, since the effect of such intrusions is to deny the criminal defendant effective assistance of counsel.
Weatherford v. Bursey,
. Whether the government was correct as a matter of law in arguing that the prosecution must always know about
Brady
material in order to give rise to a governmental duty to disclose has not been settled in this circuit.
Cf. United States ex rel. Smith
v.
Fairman,
. Prior to
Bagley,
the standard of materiality had varied with the specificity of the defendant’s request for the material. Although the portion of the opinion in
Bagley
establishing the uniform "reasonable probability standard" was joined only by Justices Blackmun and O’Con-nor, Justice White’s concurring opinion joined by Chief Justice Burger and Justice Rehnquist also cited the "reasonable probability” standard with approval.
. Kelly also asserts that his fourth amendment rights were violated by Davenport’s theft of these documents. The usual remedy for illegal searches and seizures, however, is exclusion at trial,
United States
v.
Morrison,
. The Third Circuit is the only court to clearly hold that a sixth amendment violation is established by a showing under any one of the factors.
United States v. Costanzo,
. Thus, the issue of prejudice arises in two distinct contexts in sixth amendment cases, as illustrated by the Supreme Court’s recent opinion in
Delaware
v.
Van Arsdall,
— U.S. -,
In some cases, the court’s inquiry Will end once the constitutional violation is established. When constitutional errors "are so fundamental and pervasive that they require reversal without regard to the facts or circumstances of the particular case,” the error is deemed prejudicial in *139 every case. Id. at 1437. In most cases, however, sixth amendment violations will still be subject to Chapman harmless-error analysis. Id. at 1438. Thus, the prejudice factor will enter the analysis a second time, but this time with the burden on the government to prove, beyond a reasonable doubt, that the constitutional violation was not outcome determinative.
