Sam and Dean Winchester have not always had good relations with the authorities. The Winchesters’ dealings with the law enforcement community have had mixed results. In thepilot episode of Supernatural, Sam and Dean pose as Federal Marshals and while talking to the local deputy, Deans makes the comment, “Well, that is exactly the kind of crack police work I’d expect out of you guys.” Dean is later arrested by the same Deputy. In “Nightshifter” (S02E12) Dean complains about the interference of police:
Dean: “Friggin’ cops.”
Sam: “They’re just doing their job.”
Dean: “No, they’re doing OUR job, only they don’t know it so they suck at it.”