Pop culture is crawling with cops, from the bumbling Keystone crew and hapless Inspector Clouseau to the grim-faced detectives who populated “Hill Street Blues” and “The Wire.” In a few cases, the fictional artifacts of police work are also famous, as in the TARDIS time machine from the “Dr. Who” television series, which hides in plain sight by disguising itself as a U.K. police box. Of course, most former police officers, their families, and...Continue Reading