This case arises on appeal following the conviction and sentencing of defendant-appellant Steven Allen Simmons.
I. STATEMENT OF THE CASE
On October 31, 1989, City of Miami Police Officer Kelvin Knowles apprehended Steven Allen Simmons, whom Knowles had earlier observed clutching a brown paper bag. Knowles examined the bag аnd discovered that it contained a loaded firearm. After Knowles advised Simmons of his Miranda rights, Simmons asked the officer for “a break,” and stated that he could not “stand a pistol charge.” Simmons was arrested and incident to booking was found to have prior convictions for violent felonies.
On January 4, 1990, a federal grand jury rеturned a one-count indictment charging Simmons with possession of a firearm by a convicted felon, in violation of 18 U.S.C.A. §§ 922(g)(1), 924(a)(2), and 924(e) (West Supp.1992). A jury convicted Simmons on June 29, 1990. Pursuant to the Armed Career Criminal Act, the district court on February 22, 1991 sentenced Simmons to fifteen years imprisonment and three years of supervised releаse. See 18 U.S.C.A. § 924(e).
II. ANALYSIS
Simmons raises the following two principal claims on appeal: (1) the district court committed plain error by failing to excuse, sua sponte, certain jurors for cause, and (2) the district court considered convictions resulting from a constitutionally invalid guilty plea as predicate convictions when sentencing Simmons undеr the Armed Career Criminal Act. For the following reasons, we conclude that neither of these claims has merit. We therefore affirm Simmons’ conviction.
A. Excusing jurors sua sponte
Simmons claims that four jurors — Dorothy White, Mary Floyd, Josephina Garcia, and Alejandro Gonzalez — displayed bias and partiality in the course of voir dire and, therefоre, should have been excused by the district court sua sponte for cause. Simmons argues that the district court’s failure to excuse those jurors for cause, notwithstanding Simmons’ failure to challenge the jurors either for cause or peremptorily, deprived him of his Sixth Amendment right to an impartial jury.
The constitutional standard for juror impartiality is whether the juror “can lay aside his opinion and render a verdict based on the evidence presented in court.”
Patton v. Yount,
*185 In the instant case, Simmons failed to object during the lower court proceedings. We must therefore grant the lower court’s finding of impartiality still greater deference under the plain error doctrine:
Plain errors are those seriously affecting the ‘fairness, integrity, or public reputation of judicial proceedings.’ Furthermore, the error must be both obvious and substantial. [Plain error is found] in exceptional circumstances where needed to рrevent a miscarriage of justice.
United States v. Solomon,
The district court in its voir dire properly instructed the jury regarding the law of proof and burden involved in criminal cases. The district court first asked the panel as a whole whether they would agree to hold the government to its burden of proof beyond a reasonable doubt, and all jurors agreed. The venire also agreed to give the appellant the presumption of innocence. The court then asked:
Is there anybody here who can’t give the defendant the presumption of innocence and give it to him throughout the trial until such time as the government proves guilt beyond a reasonable doubt, if the government can do that? Anybody feel they can’t do that?
No venire person responded that he or she would not “do that.” The court then followed with an explanation of why “[o]ur law does not require anybody to defend themselves.” When the court asked if anyone would consider whether the defendant testified or not as a factor in deciding guilt or innocence, no juror indicated a difficulty. When, however, the court asked whether any juror would be swayed if the defendant neither testified himself nor called any witnesses, two jurors equivocated. Dorothy White stated she “didn’t think” she could ignore the fact that no defense was presented. Mary Floyd initially stated that her position would “depend on the evidence” offered by the prosecution, and then stated that she would have “a little” problem if the defendant did not testify or offer witnesses. Josephina Garcia next indicated that she might be troubled. The court did not immediately attempt to rehabilitate Garcia’s answer. Later, Alejandro Gonzalez responded that he would “tend to believe” the testimony of a police officer if faced with conflicting accounts offered by a police officer and a lay witness.
At the close of the court’s voir dire, the court again addressed the panel as a whоle:
*186 If you were selected to sit on this jury, after hearing the evidence I will instruct you on the law that you must follow and apply in deciding the case, and I will instruct you that you must follow that law whether you agree with it or not.
I wonder if that’s going to be a problem for anybody, if they think this is a bad law or don’t agree with that law? The laws are the laws of Congress that have been enacted by Congress. Would you be able to apply that if you just kind of philosophically disagreed with the law? Anybody feel that would be a problem for them?
The court therefore revisited the issue of whether the prospective jurors could follow “the law” that had been carefully and thoroughly explained to the panel earlier. No member of the venire indicated that he or she would have any difficulty. We find that this final colloquy with the potential jurors established an indication of impartiality such that the error in not
sua sponte
removing the jurors, if any error existed at all, was not so conspicuous that the “judge and prosecutor were derelict in countenanсing it.”
Bonavia,
In addition, defense counsel appears to have been following the voir dire closely and using his strikes selectively. Although defense counsel did not strike any jurors for cause, counsеl proceeded to use eight peremptory strikes. At one point, defense counsel objected that the government had been striking primarily black jurors. At the conclusion of the voir dire, defense counsel had two remaining peremptory strikes but declined to use them. This decision not to use his remaining peremptory strikes may well have been a strategic decision to retain the four jurors in question.
See Tafero v. Wainwright,
Given the final colloquy and the strong possibility of a strategic decision by defense counsel, any error by the lower court is clearly not “obvious.”
See Sorondo,
B. Predicate felonies derived from constitutionally valid plea
Simmons challenges the enhancement of his sentence under 18 U.S.C.A. § 924(e) (West Supp.1992). Section 924(e) provides that felons convicted of possessing firearms in violation of 18 U.S.C.A. § 922(g), who also have three prior convictions for “violеnt felonies” or “serious drug offenses,” are subject to incarceration for fifteen years to life. On January 24, 1980, Simmons pled guilty in state court to
*187
a series of violent crimes committed during a two week period in 1974. Having spent the intervening years from 1974 to 1980 in a mental institution, Simmons was declared competent to stand trial six mоnths prior to pleading guilty. Simmons contends that the predicate offenses the government relied upon in seeking the enhancement were not constitutionally valid because he had not been sufficiently apprised of the consequences of his guilty plea in 1980. Specifically, Simmons argues that his long history of mental illness and the possibility of lingering effects required the state trial court to take the extraordinary steps of securing his express waiver of all three
“Boykin
rights”: his right to a jury trial, his right to confront adverse witnesses, and his privilege against self-incrimination.
See Boy-kin v. Alabama,
The
Boykin
Court held that a silent record does not reflect that the defendant made a knowing and intelligent waiver of his right to trial, his right against compulsory self-incrimination and his right to confront his accusers.
See id.
This Circuit, however, has construed
Boykin
to require only that courts establish a record that generally “reveals affirmative awareness of the ‘consequences’ of a guilty plea.”
United States v. Frontero,
Simmons has not provided this Court with any legal basis for holding that the state trial court was required to secure Simmons’ express waiver of all three оf his
Boykin
rights. As noted above, Simmons was declared competent to stand trial six months prior to his plea of guilty. A defendant competent to stand trial is one who “ ‘has sufficient present ability to consult with his [or her] lawyer with a reasonable degree of rational understanding — and [one who] has a rational as well as faсtual understanding of the proceedings against him [or her].’ ”
Tiller v. Esposito,
Simmons’ behavior and responses during his plea colloquy likewise did not provide the trial court with reason to suspect that he did not understand the court’s thorough explanation of the consequences of pleading guilty. The trial court determined that Simmons had discussed with counsel the option of pursuing various defenses,
4
and
*188
that Simmons understood that he was forfeiting his right to trial. Throughout the proceedings, Simmons carefully responded to each of the trial court’s questions, answering “yes” and “no” when appropriate, and qualifying his answers when necessary.
See United States v. Ruo,
Nonetheless, the trial court did not merely inform Simmons of the sentencing range for the proposed plea. The court instead described
precisely
the sentence that Simmons would serve if he decided to enter a guilty plea. By ascertaining that Simmons understood the terms of the sentence he would receive, the trial court ensured that the defendant was fully apprised of the most significant consequence of his guilty plea.
See Coleman v. Alabama,
III. CONCLUSION
For the foregoing reasons, the judgment of the district court is therefore AFFIRMED.
Notes
. Simmons erroneously cites several Supreme Court cases for the proposition that the right to an impartial adjudicator is not subject to plain error analysis.
See, e.g., Gray v. Mississippi,
Simmons cites cases that in essence hold only that the right to an imрartial adjudicator is so fundamental to a fair trial that "its infraction can never be treated as harmless error.”
See Gray,
The plain error rule, however, differs from the harmless error rule in both purpose and scope. Unlike the harmless error rule, the plain error rule serves "to enforce the requirement that parties object tо errors at trial in a timely manner so as to provide the trial judge an opportunity to avoid or correct any error, and thus avoid the costs of reversal.”
Sorondo,
. Simmons alternatively argues that he was deprived of his right to effective assistance of counsel because his trial counsel failed to strike jurors White, Floyd, Garcia and Gonzalez for cause. A defendant is precluded from raising ineffective assistance of counsel claims for the first time on direct appeal unless there has been "an opportunity to develop and include in the record evidence bearing on the merits of the allegations.”
U.S. v. Hilliard,
. Simmons claims that the district court also еrred by (1) allowing the government to present rebuttal testimony, (2) allowing an officer to testify about his personal experience with fingerprint detection, and (3) not declaring a mistrial based on the prosecution’s single mention of Simmons’ previous convictions, instead of “conviction” as agreed by stipulation. Cоnceding that none of the errors is separately cognizable, Simmons argues only that the errors together “fueled" the biases of the four jurors at issue. Aside from the fact that Simmons is reduced to merely speculating about how these “errors" may have inflamed the biases of the jurors, this argument has no bearing on the question of whether the alleged bias of the jurors was “so conspicuous" to the trial court
during voir dire
that the court was remiss in allowing the four jurors to serve.
See Bonavia,
. Simmons argues that the trial court erred by not specifically inquiring as to why he no longer wished to pursue his insanity defense. A trial court, however, is not constitutionally required to pursuе with defendant all possible defenses in order to adequately inform defendant of the consequences of his plea.
See Dismuke v. United States,
Because Simmons’ decision not to further pursue his insanity defense was not sudden or ill-considered, he provided little reason for further specific inquiry by the trial court.
See Malinauskas,
