Jason Mucha v. Jutiki Jackson

POSNER, Circuit Judge.

The plaintiff charged two Milwaukee police officers (a captain and a lieutenant) with having detained him' without a warrant or other justification, in violation of the Fourth Amendment as made applicable to state action by interpretation of the Fourteenth Amendment and in turn to acts of individual state officers by 42 U.S.C. § 1983. There are other defendants and other charges, but the only issue presented by this appeal is whether the officers are entitled to qualified immunity.

The plaintiff was a Milwaukee police sergeant. In October 2012, having not reported to duty…