There are many communications an officer of the law makes during the discharge of his duty. Some of these statements are made to other officers, some to the public, some to prisoners, and some to those whose aid they are soliciting in the course of their duty. Many statements which an officer makes during a day would definitely be slanderous, except for a degree of privilege which is accorded to policemen.
John Maxey, Police Tort Liability for Defamation, 16 Clev.-Marshall L. Rev. 435 (1967)