Deano Babe Formaro appeals from a judgment entered upon a conditional guilty plea to conspiracy to distribute methamphetamine in violation of 21 U.S.C. §§ 841(a)(1) and 846. In the plea Formaro reserved his right to challenge the district court’s denials of his suppression motions. 1 We affirm.
On March 21,1997, Officer John Van Haaf-ten, who was assigned to a county drug task force, submitted an application for a warrant to search Formaro’s house. Van Haaften stated that since January 1996 the task force had been investigating Formaro and his wife for illegal drug distribution and during that time confidential informants had made controlled purchases of marijuana and methamphetamine from Formaro’s house. In attachments to the application, Van Haaften stated that the informants had given reliable information in the past and that their information as to Formaro had been corroborated. A state court judge issued the warrant that day. On executing the warrant one week later, officers found one pound of methamphetamine, one-half pound of marijuana, over $29,000 in cash, a pistol, and drug paraphernalia.
On appeal, Formaro argues that the district court erred in denying his motion to
*770
suppress, claiming the information in the search warrant application was too vague and too stale to establish probable cause. His arguments are without merit. “Probable cause is a fair probability that contraband or evidence of a crime will be found in the location to be searched.”
United States v. LaMorie,
Formaro does not dispute that “[t]he statements of a reliable confidential informant are themselves sufficient to support probable cause for a search warrant.”
United States v. Wright,
Moreover, “corroboration of the [confidential informant’s] information by independent investigation is an important factor in the calculus of probable cause.”
LaMorie,
We also reject Formaro’s argument that the application was deficient because, except for the date of the last controlled buy, Van Haaften did not indicate the dates or the number of the other sales.
3
Although it would have been preferable to include the information, we are “not convinced that the lack of specific dates [or number of buys] deprived the [judge] of essential information in determining probable cause.”
United States v. McKeever,
Nor, as Formaro argues, did the fact that the last controlled buy was made two and one-half weeks before the application render the information in the application stale. It is true that “[p]robable cause must exist when a warrant is issued, not merely at some earlier time.”
LaMorie,
Likewise, “[bjecause continuing criminal activity was suspected and corroborated, probable cause did not dissipate in the [seven] days that lapsed between the time the state court issued the warrant and its execution.”
United States v. Gibson,
Formaro’s argument that the district court erred in failing to hold a
Franks
hearing is also without merit. Under
Franks v. Delaware,
Accordingly, the judgment is affirmed.
Notes
. The Honorable Ronald E. Longstaff, United States District Judge for the Southern District of Iowa, denied Formaro’s first motion to suppress. The Honorable Harold D. Vietor, Senior United States District Judge for the Southern District of Iowa, denied a second motion.
. Formaro also incorrectly argues that the information in the application was vague as to the location of the controlled buys. In the application, Van Haaften specifically stated that the informants had made "controlled purchases of marijuana and methamphetamine from the For-maro[s'] residence,” and in an attachment stated that one of the informants went into the house to purchase drugs. Even if the other informant had not purchased drugs at the house, there was sufficient probable cause to believe that evidence of drug activity would be found in the house.
See United States v. Hulett,
. At the suppression hearing, Van Haaften testified that there were three controlled buys.
. Even if the application were deficient, we agree with the district court's alternate holding that the search was lawful under the good-faith exception of
United States v. Leon,
