Odie Lee Jordan appeals his conviction for being a felon in possession of a firearm described in 18 U.S.C. § 922(g) (Supp. V 1987), arguing numerous errors in the trial court and raising a Batson claim. As well, he argues that the trial court incorrectly enhanced his prison term under 18 U.S.C. § 924(e)(1) (Supp. V 1987). Unpersuaded *183 by Jordan’s arguments and bound by precedent, we affirm his conviction and sentence.
I. BACKGROUND
Jordan was the passenger in the front seat of a two-door Ford LTD driven by his girlfriend on the night of his arrest in August 1987. The car was pulled over after running a red light. As one of the uniformed police officers approached the car he saw Jordan place a silver object (which the officer took to be a gun) into the middle of the front seat. Indeed, a .38 revolver was found in the driver’s purse, and Jordan was arrested and charged as a felon in possession of a firearm. Some $3,900 in cash was also found on him that night.
At trial, Jordan’s defense was that the gun belonged to his girlfriend. He requested a “mere presence” instruction to this effect which the district court refused. The government introduced eight of Jordan’s prior felony convictions to prove his status as a felon in possession. Jordan was convicted and sentenced to fifteen years without probation or parole under the enhancement provision cited above.
II. DISCUSSION
We begin with Jordan’s Batson claim. From his original panel of 35 venirepersons, the district court removed four for cause without objection. Of the remaining 31, seven were blacks, as is Jordan. The government had six peremptory strikes and Jordan had ten. Of those, the government used three against blacks and three against whites. 1 Jordan struck one black (and presumably nine whites) peremptorily. That brought the panel down to fifteen with three blacks remaining. Apparently the first twelve were taken as acceptable jurors (including the three remaining black panel members) with a remainder of three. The government and Jordan were then each allowed to strike one of the remaining three panel members to leave one alternate juror. Hence, of the six peremptory strikes available to it, the government exercised three against blacks and three against whites. 2
Jordan’s Batson claim is that because the government peremptorily struck 3 of 7 black venirepersons as compared to 3 of 21 white venirepersons, blacks were struck at a rate three times as frequently as whites. Jordan claims that establishes a prima facie case. The district court disagreed, saying that the numbers alone were insufficient to make out a prima facie case, unless Jordan could point to other circumstances or evidence. Jordan’s attorney expressly declined to make any other record and stood by his “rate” argument. Thus, that is all the record we have to pass on the district court’s finding that no prima facie case was made.
As a first matter we note that by what standard we review a finding of no prima facie case under
Batson
remains undetermined in this circuit.
United States v. Fuller,
Batson
gave the district courts the discretion to determine when a prima facie case is made from facts and circumstances which are the defendant’s burden to show,
*184
for example, remarks of the prosecutor made during voir dire and comparisons to similarly situated whites not peremptorily struck.
See Batson v. Kentucky,
Numbers alone have been consistently rejected by this court as making out a prima facie
Batson
claim.
See Fuller,
Jordan chose to argue no other facts or circumstances before the district court and instead asks us to declare as a matter of law that when blacks are struck at a certain rate more frequently than whites a prima facie case is made out under
Batson.
If we were to do that, a prima facie case would always be made out where blacks are struck three times as frequently as whites. Thus (assuming a panel of 28 and 6 peremptories for the government), if the government strikes 2 of 4 blacks and 4 of 24 whites, a prima facie case would be made because blacks have been struck three times as frequently as whites — despite the cases from this court that have failed to find a prima facie case were 50% of the black venirepersons were struck.
See United States v. Ingram,
This is not to say that numbers are never helpful to demonstrate to the district court that the government may be striking blacks for racial reasons. Numbers, however, are often too manipulable to make out a case by themselves. The constitutional principle of Batson would not be well served by numerical rigidity. Comparison to the treatment of similarly situated, but unstruck panel members will better make out a prima facie case, if one exists, for the district court. Then Batson will be served, because the district court will evaluate the prima facie case regardless of the numbers involved on the basis of circumstances (other than numbers alone) that demonstrate race discrimination. We believe it is best to leave the district courts unfettered by an artificial mathematical formula 4 so that they can determine on a case-by-case basis the existence of a prima facie claim, and thus eliminate race discrimination in the selection of juries — regardless of what the numbers can be made to show.
Jordan failed to articulate anything other than his rate argument before the district court. For the reasons given, we think that, under any standard, the district court did not err by finding that no prima facie case was made.
*185 We turn next to Jordan’s claim that the district court erred by refusing his mere presence instructions. Jordan’s defense was that the gun was not his and that his mere presence as a passenger in the car did not sufficiently show his possession of the gun to sustain a conviction under § 922(g). Jordan requested the following instructions to explain his defense to the jury:
Mere presence at the scene of the crime and knowledge that a crime is being committed are not sufficient to establish that the defendant committed the crime.
Unless you believe that the government’s evidence has proven beyond a reasonable doubt that [Jordan’s girlfriend] was not in possession of the firearm in question at the time of the arrest on August 18, 1987, then you shall acquit the Defendant.
Supplemental Designation of Record at 33 and addendum.
Jordan claims that without these instructions he was denied an appropriate theory of defense under the holding from
United States v. Manning,
In Manning we held that the defendant had been denied his theory of defense by failure of the district court to include an instruction similar to the first one Jordan requested. In that case three individuals were in a car, two in the front seat and one in the back, and there was conflicting testimony as to whether the defendant was in the front or back and as to who dropped the shotgun in question out of the front passenger window. The case was reversed because we believed the instruction given on possession was insufficient to preclude conviction for mere presence of the defendant.
The principle of law from
Manning
is that a defendant is entitled to an instruction outlining his theory of defense if he makes a timely request for an instruction which correctly states the law and is supported by the evidence.
Manning,
The possession instruction given to Jordan’s jury reads:
The law recognizes two kinds of possession: actual possession and constructive possession. A person who knowingly has direct physical control over a thing, at a given time, is then in actual possession of it.
A person who, although not in actual possession, knowingly has both the power and the intention, at a given time, to exercise dominion or control over a thing, either directly or through another person or persons, is then in constructive possession of it.
The law recognizes also that possession may be sole or joint. If one person alone has actual or constructive possession of a thing, possession is sole. If two or more persons share actual or constructive possession of a thing, possession is joint.
You may find that the element of possession as that term is used in these instructions is present if you find beyond reasonable doubt that the defendant had actual or constructive possession, either alone or jointly with others.
Instruction No. 24, Supplemental Designation of Record at 34.
Neither the testimony nor facts of this ease present as close a question as in Manning, despite Jordan’s claim that the gun was his girlfriend’s. Unlike in Manning, there was no doubt that Jordan was in the front seat, there was no possibility of confusing Jordan with other persons in the car, and there was evidence that Jordan placed the gun in the middle of the front seat. The very slim defense that Jordan was only present in the car and never in possession of the gun was as well presented to the jury by the instructions given as by Jordan’s requested instructions. 5 Thus *186 we believe that the instructions as a whole, particularly No. 24, adequately and correctly covered the substance of Jordan’s requested instructions and that it was not error to refuse his requests.
Jordan’s remaining points of error from his trial are not substantial. We have reviewed the record and are not persuaded by them. First is his claim that the government’s introduction of evidence of eight of his prior felonies was prejudicial because he offered to stipulate to a prior felony conviction. The government does not have to stipulate to proof of prior convictions.
United States v. Savage,
Finally Jordan argues error in enhancement of his sentence under § 924(e)
6
for the reason that his prior burglary convictions from Arkansas and Missouri are not of the type of violent felonies that Congress intended to be used for enhancement because the crimes of which he was convicted are not burglaries as defined by Congress nor do they require conduct which puts anyone at serious risk of physical injury.
7
Jordan recognizes that this circuit has decided this issue against him in
United States v. Port-wood,
*187
Our court has already followed
Port-wood
in
United States v. Taylor,
III. CONCLUSION
Finding no error in the proceedings or judgment of the district court, Jordan’s conviction and sentence are affirmed.
Notes
. The record does not indicate the racial classification of the jurors who were not black. Jordan refers to 24 whites of the 31 panel members remaining after the district court removed four persons for cause, and we will assume they were whites for purposes of our opinion.
. Jordan argued first at trial that the government had six total peremptories, half of which were used against blacks, but in his brief, Jordan suggests seven total peremptories. We will consider the first six and not the "extra” peremptory used to leave an alternate after the twelve jurors were already selected. This view actually makes Jordan’s argument more compelling as it shows blacks to be struck at a rate three times more frequently than whites — 3 of 7 blacks as compared to 3 of 21 whites. Jordan includes the three whites from whom the alternate was chosen in his calculation, arriving at a rate of blacks struck at two and one-half times for each white struck — 3 of 7 blacks as compared to 3 of 24 whites.
. The fact that blacks do serve on a jury will not alone belie a
Batson
claim, but their service can be taken into account to determine whether or not the government is striking blacks for racial reasons. And,
"Batson
does not require that the government adhere to a specific mathematical formula in the exercise of its peremptory challenges.”
United States v. Montgomery,
. Similarly we have held that the government is not bound by mathematical formulas in the use of its peremptories.
Montgomery,
. We do not have to pass on whether Jordan's requested instructions were correct statements *186 of the law. However, we note that because Jordan could have jointly possessed the gun with his girlfriend the instruction requested with respect to her possession of the gun, if given, would probably not have been a correct statement of the law.
. (e)(1) In the case of a person who violates section 922(g) of this title and has three previous convictions by any court referred to in section 922(g)(1) of this title for a violent felony or a serious drug offense, or both, such person shall be fined not more than $25,000 and imprisoned not less than fifteen years, and, notwithstanding any other provision of law, the court shall not suspend the sentence of, or grant a probationary sentence to, such person with respect to the conviction under section 922(g), and such person shall not be eligible for parole with respect to the sentence imposed under this subsection.
18 U.S.C. § 924(e)(1) (Supp. V 1987).
. (B) the term "violent felony” means any crime punishable by imprisonment for a term exceeding one year that—
(i) has as an element the use, attempted use, or threatened use of physical force against the person of another; or
(ii) is burglary, arson, or extortion, involves use of explosives, or otherwise involves conduct that presents a serious potential risk of physical injury to another.
18 U.S.C. § 924(e)(2)(B) (Supp. V 1987).
.
United States v. Chatman,
. In our view the Missouri second degree burglary statute encompasses the common law definition of burglary and comes within the purview of § 924(e) as intended by Congress, regardless of what other states’ definitions might be.
