Appellant Rufus Shepard contends on appeal that the trial court erred in denying, without a hearing, his motion to vacate his sentence, D.C. Code § 23-110 (1981), on the ground that he was denied his sixth amendment right to the effective assistance of counsel at trial. We find appellant’s contentions unpersuasive, and therefore affirm the trial court’s denial of his motion.
Following a 1979 jury trial in which appellant was tried with four codefendants for offenses arising out of the armed robbery of a laundromat, appellant was convicted of three counts of armed robbery, D.C. Code §§ 22-2901, -3202 (1981) (amended 1983), and was acquitted on two counts of assault with a dangerous weapon, D.C. Code § 22-502 (1981). On direct appeal, newly appointed counsel for appellant contended that the trial court had erred in denying his motion during trial to compel a physical and mental examination of Rosetta Ross,
1
an accomplice of appellant who had been the principal witness for the government. This court rejected that claim and affirmed appellant’s conviction.
Hilton, supra
note 1,
In 1983, appellant filed a motion to vacate and set aside judgment of conviction and for a new trial, pursuant to D.C.Code § 23-110 (1981). Appellant based his motion on alleged ineffective assistance of counsel in two respects. The first was trial counsel’s failure to move before trial for a competency evaluation of Rosetta Ross, the primary witness against appellant at trial. The second was counsel’s failure to move to sever appellant’s trial from that of his codefendants. The trial court denied appellant’s § 23-110 motion without a hearing. This appeal followed.
*1280
The government contends that appellant’s ineffective assistance of counsel claims are barred because appellant has shown no cause for his failure to raise them at the time of his direct appeal and no prejudice resulting from his trial counsel’s alleged ineffectiveness.
Cf. United States v. Frady,
On several occasions, this court has suggested that an appellant who is aware of a basis for alleging ineffective assistance of trial counsel should file, during the penden-cy of direct appeal, a § 23-110 motion that adequately sets forth the grounds for the claim of ineffectiveness.
2
See Proctor v. United States,
We now hold that, if an appellant does not raise a claim of ineffective assistance of counsel during the pendency of the direct appeal, when at that time appellant demonstrably knew or should have known of the grounds for alleging counsel’s ineffectiveness, that procedural default will be a barrier to this court’s consideration of appellant’s claim.
Here, appellant’s knowledge is demonstrable because the mistakes that appellant asserts his counsel made at trial related to the issues raised by appellant and his co-appellants in their direct appeals. Specifically, appellant’s direct appeal raised the issue of the trial court’s failure to grant a mid-trial motion for physical and mental examination of Rosetta Ross; his collateral attack raises his counsel’s failure to move before trial for that examination. Appellant was necessarily aware of that omission during the pendency of his direct appeal, and there is no indication that, subsequent to the direct appeal, he learned anything that added significantly to the considerable information regarding Ross’ mental condition that was spread throughout the record at trial. Similarly, appellant’s knowledge of the grounds for seeking a severance was complete during the pendency of the direct appeal. Under circumstances such as these, there appears no reason why an appellant should not be required to make his arguments concerning *1281 the ineffectiveness of his counsel during the pendency of his direct appeal.
We turn now to the question of how an appellant may surmount the barrier created by the procedural default of failing to press an available claim of ineffectiveness concurrently with a direct appeal. We must conduct our inquiry mindful of the constitutional basis of one’s right to effective assistance of counsel.
See Strickland v. Washington,
The Supreme Court has applied that test to federal court review under 28 U.S.C. § 2254 of constitutionally-based collateral attacks on state convictions in instances of appellate procedural default.
Reed v. Ross,
We cited
Norris, supra,
with approval in
Head v. United States,
Relief under § 23-110 is appropriate only for serious defects in the trial which were not correctible on direct appeal or which appellant was prevented by exceptional circumstances from raising on direct appeal. Atkinson v. United States,366 A.2d 450 , 452 (D.C.1976) (citations omitted). Where a defendant has failed to raise an available challenge to his conviction on direct appeal, he may not raise that issue on collateral attack unless he shows both cause for his failure to do so and prejudice as a result of his failure. Frady,456 U.S. at 167-68 ,102 S.Ct. at 1594 ; see Norris v. United States,687 F.2d 899 (7th Cir.1982) (applying Frady “cause and prejudice” standard to issue raised in § 2255 motion); cf. Engle v. Isaac,456 U.S. 107 ,102 S.Ct. 1558 ,71 L.Ed.2d 783 (1982) (same standard held applicable to motions under 28 U.S.C. § 2254 (1982)).
Id.
at 451. In
Head,
we did not make any distinction between constitutional and non-constitutional claims. There, the appellant belatedly claimed that the trial court had erred in refusing to allow the defense to impeach a government witness with two assertedly inconsistent prior statements. While we did not discuss whether the claim was constitutional, a strong argument that it was such arises from our more recent decision in
Bassil v. United States,
Considering together the holdings in Reed, Norris, and Head, we conclude that the cause and prejudice standard is appropriate for testing efforts to surmount the barrier created by the particular type of procedural default involved here. 4
Our holding that a showing of cause and prejudice is a prerequisite to this court’s review of an appellant’s claim where there has been such a procedural default, however, is prospective.
See United States v. Foster,
The test for the ground for relief appellant presses, ineffective assistance of counsel, was established by the Supreme Court in
Strickland v. Washington, supra.
Appellant’s counsel was ineffective if his performance was deficient,
i.e.,
if “counsel made errors so serious that counsel was not functioning as the ‘counsel’ guaranteed the defendant by the Sixth Amendment,”
id.
There are two hurdles appellant must overcome to make a showing of prejudice sufficient to succeed on his first ineffectiveness claim. First, he must show that it is likely that the trial court, in the proper exercise of its discretion, would have granted a pretrial motion for a competency evaluation. Second, he must show that had the trial court granted the motion, it is likely that the outcome of the trial would have been more favorable to him. Appellant makes neither showing.
We deem it most unlikely that the trial court would have granted a pretrial motion for a competency evaluation had appellant’s counsel made such a motion. Significantly, the trial judge denied a motion for a competency evaluation of Ross made by appellant during the trial, a denial we upheld on direct appeal.
Hilton v. United States, supra,
Appellant has also failed to demonstrate that a pretrial competency evaluation of Ross probably would have changed the outcome of the trial. Appellant contends that his trial counsel’s failure to move for an examination “foreclosed any possibility, however remote” that the trial court would find Ross incompetent before trial or that *1283 the examination could provide the defense with psychiatric findings useful for cross-examination. We agree with the government that such speculation is insufficient to establish the reasonable probability of acquittal required by Strickland. Furthermore, with respect to appellant’s second stated goal of obtaining psychiatric findings useful for cross-examination, we have already pointed out that the jury heard an abundance of material impeaching Ms. Ross, much of which related to her mental condition. In sum, appellant has failed to show any prejudice from the failure to move for a pretrial competency hearing that would support his ineffectiveness claim.
Appellant also argues that his trial counsel was ineffective because he failed to move to sever appellant’s trial from that of his codefendants. Because the record in this case amply demonstrates Shepard’s participation in the armed robbery as its initiator and as an aider and abettor, this case is distinguishable from those cases in which severance was found necessary when an appellant’s involvement in the alleged offense is
de minimis
compared to that of his codefendants.
See Christian v. United States,
Finally, appellant contends that the trial court erred in deciding his § 23-110 motion without a hearing. The trial court denied the motion on the ground that “the Motion, files and records of the case conclusively show that the prisoner is entitled to no relief_” D.C.Code § 23-110 provides that “[ujnless the motions and files and records of the case conclusively show that the prisoner is entitled to no relief, the court shall ... grant a prompt hearing thereon.” It is apparent, therefore, that the trial court applied the appropriate standard. The issue then is whether the trial court applied the standard correctly.
In
Gibson v. United States, supra,
we interpreted § 23-110 to require “an eviden-tiary hearing
unless
the allegations of the motion itself are vague and conclusory, are wholly incredible, or, even if true, would merit no relief.”
Appellant admits that the trial court could have decided the severance issue on the existing record, but argues that he was entitled to a hearing on the other prong of his ineffectiveness claim. Applying the above tests to this issue, it is clear that the trial court acted properly in denying appellant a hearing on his claim. Although appellant made a weak attempt to allege facts outside the record in support of his claim, it remains basically the type of claim that the trial judge could decide on the basis of the record before him and his recollection of the proceedings at trial. *1284 The facts outside the record alleged by appellant were that his counsel failed to interview him thoroughly, failed to keep appellant informed about his case, failed to conduct an investigation of the case, and failed to interview Rosetta Ross. Since the petition provides absolutely no facts to support the first three allegations, they are obviously vague and conclusory, and therefore insufficient to justify a hearing. Counsel’s failure to interview Ross is a specific allegation outside the record, but appellant suggests only that counsel would have learned that Ross was mentally incompetent. Appellant’s counsel, however, learned about Ross’ drug and mental illness history, at the latest, at trial and moved to strike her testimony as incompetent, a motion that the trial court denied. As discussed above, appellant provides us no basis for concluding that the trial court would have granted an earlier motion to find Ross incompetent. Therefore, since appellant would be entitled to no relief even if the facts as alleged are true, the trial court acted correctly in deciding appellant’s § 23-110 motion without a hearing.
Affirmed.
Notes
. The motion requested that a "qualifying” doctor fully explore the witness’ present condition. On direct appeal, this court interpreted that request as a motion for a physical and mental examination of Ross.
See Hilton v. United States,
. We note that under federal practice, generally, a petitioner is discouraged from filing a collateral attack, pursuant to 28 U.S.C. § 2255, during the pendency of the direct appeal, and the trial court is discouraged, although not necessarily precluded, from considering a § 2255 motion filed at that time.
See United States
v.
Gordon,
The United States Court of Appeals for the District of Columbia Circuit, however, recognized in
Tindle, supra,
that a challenge to the effectiveness of trial counsel’s representation presents a special circumstance justifying consideration of a § 2255 motion during the pend-ency of a direct appeal.
Tindle,
173 U.S.App. D.C. at 81 & n. 9,
. The other standard which suggests itself for use here, the "deliberate bypass" test, is not well suited to the task because it cannot readily be applied to the failure of a party to observe a mandated procedure like that in question. It would be, at best, anomalous to test a party's failure to do what is mandatory by ascertaining whether that person had "deliberately bypassed the orderly procedure of the state courts by personal waiver of the claim amounting to ‘an intentional relinquishment or abandonment of a human right or privilege.’ ”
Fay v. Noia,
More significantly, the Supreme Court in
Wainwright v. Sykes,
. In considering placing this burden on proponents of certain § 23-110 motions, we are aware that such motions “may be made at any time.” Section 23-110(b). This holding, however, does not limit the time in which such motions may be brought. It merely identifies a standard to be applied to them. Precisely the same language is present in 28 U.S.C. § 2255, the federal analogue of § 23-110, yet in some instances applicants under § 2255 are required to show cause and prejudice.
United States
v.
Frady,
