The home life of Sgt. Getraer is shown in some detail. His on-screen wife Betty was played by Gwynne Gilford, who had been his wife in real life since 1969. Like the Getraers, they had two children. This was Gilford's final appearance as Betty Getraer.
The title refers to the expression "A diamond in the rough" which means someone who is basically good hearted, but lacking social graces and respect for the law.
Another CHiPs-Star Trek connection: guest star Marc Alaimo would go on to portray Cardassian Gul Dukat on Star Ttek: Deep Space Nine.