Evanson v. Reedy

Issue: 1) What standard should be used to determine the existence of probable cause in, and the availability of qualified immunity for, an arrest warrant under the Fourth Amendment; (2) whether qualified immunity should be restricted primarily to situations requiring split-second decisions and denied for a mistaken arrest when there was an objectively reasonable basis for the arresting officer to believe that probable cause existed under the Fourth Amendment to make the arrest; and (3) whether a police officer, who reasonably suspects a complainant's criminal behavior, credibility, and recent drug use, violates the Fourth Amendment by requesting a hospital to test for drug use the blood sample that the complainant voluntarily provided to the police as part of a rape kit.