Dеrrick Miller and Calvin Wallace were convicted of. conspiracy to possess’ cocaine and marijuana with intent to distribute in violation of 21 U.S.C. § 846 (1988). In addition, Miller was convicted of carrying a firearm during a drug trafficking offense. 18 U.S.C. § 924(e) (1988). -We vacate the defendants’ сonvictions for conspiracy to possess with intent to distribute and remand to the district court with instructions to dismiss this count of the indictments with prejudice. Miller’s firearm conviction is affirmed.
I. BACKGROUND
Morris Chalah, a confidential informant, 1 telephoned Miller and arranged to sell him *196 ten kilograms of cocaine and twenty-five pounds of marijuana. On October 12, 1991, Chalah, Miller, аnd Kevin Glaser, an undercover police officer, met at a motel room. Miller inspected the cocaine and marijuana, took samples of the drugs, and indicated he would return with the money. Later that night, Miller returned to the motel accompaniеd by Wallace, who carried a suitcase containing $157,650.00 in cash. After they showed Chalah and Glaser the money, Miller and Wallace examined the drugs and discussed the transaction. Miller told Wallace to go get the car, and Wallace left the motel room. Thе defendants were then arrested. When Miller’s car was searched, officers found an open bag on the floor beneath the steering wheel that contained a loaded semiautomatic pistol.
The government filed complaints on October 14, 1991, charging Miller and Wallace with conspiracy to possess cocaine and marijuana with intent to distribute. One week later, the magistrate determined there was probable cause and bound the defendants over for trial. Nothing further transpired until January 2, 1992, when Wallace filed a motion to dismiss under the Speedy Trial Act. On January 9, the prosecutor requested that the complaints be dismissed because the government “had decided not to proceed with criminal prosecution at this time.” The court dismissed the complaints on January 10, but failed to state whether the dismissal was with or without prejudice. 2
On October 1, 1992, a grand jury indicted Miller and Wallace for conspiracy to possess cocaine and marijuana with intent to distribute (“Count I”) and indicted Miller for carrying a firearm during a drug trafficking offense (“Count II”). Miller was сonvicted and sentenced to two hundred six months (one hundred forty-six on Count I and sixty on Count II) and ordered to pay a special assessment of $100.00. Wallace was convicted and sentenced to one hundred thirty months and ordered to pay a special assessmеnt of $50.00. The defendants appeal.
II. DISCUSSION
A. The Consequences of the Pre-indictment Delay
Pursuant to the Speedy Trial Act, 18 U.S.C. §§ 3161-3174 (1988) (“Act”), an indictment must be filed within thirty days after a defendant is arrested or charged by summons with a. crime. Id. § 3161(b). A violation of this deadline results in the mandatory dismissal of the charges. Id. § 3162(a)(1). The Act does not specify that thе dismissal be either with or without prejudice; rather, the district court makes this determination. Id. In deciding whether to dismiss with or without prejudice, “the court shall consider, among others, each of the following factors: the seriousness of the offense; the facts and circumstanсes of the case which led to the dismissal; and the impact of a reprosecution on the administration of this chapter and on the administration of justice.” Id.
The government’s failure to file indictments or dismiss the complaints against Miller and Wallace within the prosсribed thirty-day period was a clear violation of the Act.
3
When a court dismisses a complaint outside the thirty-day period and is silent as to whether the dismissal is with or without prejudice, “a subsequently filed indictment should be dismissed only if the complaint should have been dismissed with prejudice.”
United States v. Bittle,
The defendants do not dispute the seriousness of the offense. Our difficulty is with the second factor, the facts and circumstances which led to the dismissal of this case. The government suggested no reason why the complaints were not dismissed or indictments filed within the thirty-day period. Instead, the government claimеd that the delay was unintentional and inadvertent. The defendants argued that the government intentionally delayed this case in order to gain a tactical advantage. The court noted that the defendants failed to offer evidence concerning the cause of the delay. The court concluded, “[t]here is simply nothing before the Court upon which any kind of informed decision can be made as to this factor.” In considering the third factor, the impact of reprosecution of the administration of justice and the Act, the court found no showing that the government’s conduct was part of a continuing pattern of disregard for the mandates of the Act. Finally, the court found the defendants failed to prove the delay had caused actual prejudice.
“An abuse of discretion occurs when a relevant factor that should have been given significant weight is not considered, when an irrelevant or improper factor is considered and given significant weight, or when all proper and no improper factors are considered, but the cоurt in weighing those factors commits a clear error of judgment.”
United States v. Kramer,
The court also improperly required the defendants to explain the government’s delay in pursuing indictments against them. The defendants, obviously, do not have access to information cоncerning the cause for the government’s delay unless they are supplied with that information by the government. Therefore, the government bears the burden of explaining the circumstances that lead to the dismissal of this case. The government violated this statute, not the defendants, and should in all fairness be charged with both stating and validating its reasons or bases for the delay. Nevertheless, the government does not suggest any justification for violating the deadline imposed by the Act.
See United States v. Jones,
Although our standard of review here is for an abuse of discretion, “[a] judgment that must be arrived at by considering and applying stаtutory criteria, however, constitutes the application of law to fact and requires the reviewing court to undertake more substantive scrutiny to ensure that the judgment is supported in terms of the factors identified in the statute.”
Id.
at 337,
As noted in
Taylor,
we recognize that the district court’s judgment “should not lightly be disturbed.”
Id.
at 337,
B. Miller’s Indictment for Carrying a Firearm
1. Double Jeopardy Claim
Miller claims that if his indictment for possession with intent to distribute should have been dismissed with prejudice, then his indictment for carrying a firearm during a drug trafficking offense must also be dismissed. Relying on
Grady v. Corbin,
We need not reach the merits of Miller’s double jeopardy argument. This is not a case of successive prosecutions or multiple punishments for the same offense. Contrary to the defendant’s assertion, jeopardy does not attach until the jury is empaneled and sworn.
See Lomax v. Armontrout,
2. Speedy Trial Claim
We also reject Miller’s speedy trial claim as it relates to his indictment for violating 18 U.S.C. § 924(e) (carrying a firearm in relation to a drug trafficking crime).
*199
Under constitutional speedy trial analysis,
7
“[p]re-indietment delay will be sufficiently ‘oppressive’ to warrant dismissal of an indictment where the delay was unreasonable and-substantially prejudicial to the defendant in the presentation of his case.”
United States v. Savage,
We hold that the government’s violаtion of the Speedy Trial Act requires dismissal with prejudice of the charges for conspiracy to possess with intent to distribute. The defendants’ remaining allegations of error are either moot or lack merit. 8
III. CONCLUSION
We vacate the defendants’ convictions for conspiracy to possess cocaine and marijuana with intent to distribute and remand this case to the district court with instructions to dismiss this count of the indictments with prejudice. We affirm Miller’s firearm conviction.
Notes
. On October 10, 1991, Chalah was arrested in Louisiana for possession of approximately twen *196 ty-four pounds of marijuana. Chalah told officers he was delivering the drugs to “Derrick” in St. Louis.
. The Court notes that the Assistant United States Attorney who presented the case on appeal is not the attorney who represented the governmеnt at the time the complaints were filed and later dismissed.
. If the government had dismissed the complaint within thirty days after the defendants' arrests, then no violation of the Act would have occurred.
See, e.g., United States v. Long,
. "[N]or shall any person be subject for the same offence to be twice put in jeоpardy of life or limb." U.S. Const.amend. V.
. The
Grady
double jeopardy analysis "bars any subsequent prosecution in which the government, to establish an essential element of an offense charged in that prosecution, will prove conduct that constitutes an offense for which thе defendant has already been prosecuted.”
Grady,
.We note the Supreme Court has specifically overruled the
Grady
“same conduct" test.
United States v. Dixon,
— U.S.-,
. “In all criminal prosecutions, the accused shall enjoy the right to a speedy and public trial....” U.S. Const.amend. VI.
. ' Miller’s contention that the search of his vehicle and seizure of the firearm was unconstitutional is without merit.
See Unite
d
States v. Walker,
