cook site. Backup arrived and police placed Bohman and Barttelt into different squad cars. Kingsley asked Bohman about a meth cook and Bohman answered affirmatively and indicated that Barttelt was cooking.
A search of the cabin (authorized by a subsequently issued warrant, based in part on information learned during the vehicle stop) confirmed that it was indeed a lab, but the particulars are not relevant to the issue before us. Bohman doesn’t dispute that a justifiable stop of his car would permit his removal from the car, and properly so. E.g., Smith v. Ball State Univ., 295 F.3d 763, 769 (7th Cir.2002) (officers may order drivers to exit their vehicles during investigatory stops). And he essentially concedes that once Kingsley sniffed anhydrous ammonia, to say nothing of Bohman’s admission, there was probable cause to search the cabin. Instead, Bohman maintains that if the stop was unreasonable, then anything obtained during the stop should be suppressed and the cabin search would be fruit from that poisonous tree. The district court found that Kingsley had reasonable suspicion that there was or recently had been meth cooking at the cabin, United States v. Barttelt, No. 10-cr-38-wmc, 2010 WL 3363307, at *5 (W.D.Wis. Aug. 23, 2010), but it noted that finding reasonable suspicion for stopping the car was a “closer call” and a “debatable point,” id. at *5-7. Yet the court found that Olmsted’s corroborated information and the “suspicious behavior” in response to the horn honk justified moving the suspicion regarding the car from “beyond a hunch to at least minimal suspicion.” Id. at *6-7. Alternatively, the court found that even if the stop was unreasonable, the determination’s closeness justified concluding that any error was merely negligent and that Kingsley acted in good faith — that is, his conduct did not justify exclusion. Id. at *7.
A mere suspicion of illegal activity at a particular place is not enough to transfer that suspicion to anyone who leaves that property.
See United States v. Johnson, 170 F.3d 708, 720 (7th Cir.1999). The Fourth Amendment allows officers to “stop and briefly detain a person for investigative purposes if the officer has a reasonable suspicion supported by articulable facts that criminal activity ‘may be afoot.’ ”
United States v. Sokolow, 490 U.S. 1, 7, 109 S.Ct. 1581, 104 L.Ed.2d 1 (1989) (quoting
Terry v. Ohio, 392 U.S. 1, 21, 88 S.Ct. 1868, 20 L.Ed.2d 889 (1968)). This reasonableness standard typically requires a set of facts that we can measure against an objective standard such as “probable cause or a less stringent test” such as reasonable suspicion.
Delaware v. Prouse, 440 U.S. 648, 654 & n. 11, 99 S.Ct. 1391, 59 L.Ed.2d 660 (1979) (internal footnotes omitted). In those circumstances where we do not insist on “some quantum of individualized suspicion,” we rely on other safeguards to assure that the reasonable expectation of privacy is not “subject to the discretion of the official in the field.”
Id. at 654-55, 99 S.Ct. 1391 (quoting
Camara v. Mun. Court, 387 U.S. 523, 532, 87 S.Ct. 1727, 18 L.Ed.2d 930 (1967)). For instance, an officer with a warrant to search a place may stop anyone leaving that place without additional individualized suspicion,
see Michigan v. Summers, 452 U.S. 692, 702-03 & n. 16, 101 S.Ct. 2587, 69 L.Ed.2d 340 (1981), but a mere suspicion of illegal activity about a place, without more, is not enough to justify stopping everyone emerging from that property,
see Johnson, 170 F.3d at 720.
When Sgt. Kingsley stopped Bohmaris Beretta, everything informant Olmsted said had checked out, but the government does not attempt to justify the vehicle stop on the basis that Kingsley had accumulated probable cause that the