Dan Matthews !
"21-50" to headquarters" and "whenever the laws of any state are violated a duly authorized agency is swung into action, in some states it is called the state police, the state troopers or the HIGHWAY PATROL" is ingrained in this 70 year old guy who last watched the show in reruns as late as 1989 or so. The actor's name was Broderick Crawford. There were less than 200 episodes as I recall. I think it started when I was 4 years old and ended when I was 8 years old so I didn't see many newly broadcast episodes. . KTLA TV in southern California played the reruns every afternoon for decades. Cable TV in Flagstaff and Mammoth Lakes included KTLA, with Sudden Stink cable dropping the station about 3 years ago. They had dropped Highway Patrol back in about 1990 or so.