Heck yeah, lets just turn over law enforcment to Hollywood!
Norris was an Air Force Air Policeman, under his birth name Carlos Ray Norris. He was born in Ryan, OK And he is, or was, a reserve police officer in Terrell, Texas, east of Dallas. (I had that slightly wrong above. It's his wife that was a deputy sheriff. ).
He also was a real karate champion, holding the Professional World Middleweight Karate Champion title from '68 to '74.
He'd be along just for the intimidation factor. :)
It was a JOKE, son, a joke.