Callahan

MEMORANDUM *

Ricky Callahan appeals the district court’s denial in part of his suppression motion. We have jurisdiction under 18 U.S.C. § 3742 and 28 U.S.C. § 1291 , and we affirm.

Because the parties are familiar with the facts, we recite them only as necessary for this decision.

Callahan contends the police unconstitutionally seized him when they entered his video store to secure it while they obtained a search warrant. He claims the police lacked probable cause because they relied on an unreliable source, Callahan’s ex-girlfriend Ms. Chance Shorty, and they corroborated only insignificant details of Shorty’s story. We disagree.

Generally, for seizures to be valid under the Fourth Amendment, there must be probable cause. Dunaway v. New York, 442 U.S. 200, 210 , 99 S.Ct. 2248 , 60 L.Ed.2d 824 (1979). Probable cause requires “a fair probability or substantial chance of criminal activity,” determined “by looking at the totality of the circumstances known to the officers at the time.” United States v. Alaimalo, 313 F.3d 1188, 1193 (9th Cir.2002) (internal quotations and citations omitted). Probable cause may be demonstrated “through the collective knowledge of police officers…