Crawford actually had a suspended driver's license for DUI's during much of the series. The episodes that show him driving on dirt roads, in rural areas, and on farms, making huge crime ring busts in orchards are indicative of this. I like the 2 door '55 Centurys used in the first season. They were actual CHP cars. Lots of great character actors and actors that would later become more well known. Stuart Whitman was one. Also the sergeant, who later appeared on Dragnet '67 and Adam 12.
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Jeff 
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