May a police officer, who secures a search warrant on the uncorroborated tip of a first-time informant by withholding from the issuing judge facts that contradict the informant's statements, avoid liability under 42 U.S.C. § 1983 for searching the home of a blameless and innocent person because, in the words of the Seventh Circuit in this case, the police are not responsible for "the sorting of truth from fiction?"

May a police officer, who secures a search warrant on the uncorroborated tip of a first-time informant by withholding from the issuing judge facts that contradict the informant's statements, avoid liability under 42 U.S.C. § 1983 for searching the home of a blameless and innocent person because, in the words of the Seventh Circuit in this case, the police are not responsible for the sorting of truth from fiction?