Cindy Morgan, who plays investigator Melanie Mitchell, played Ponch's girlfriend Jennifer in Ponch's Angels: Part 1 (1981) that aired 10 months earlier in February 1981. This makes for an interesting casting situation. In the earlier story, Jennifer was jealous of the new CHP officer Ponch was having to train. That new officer was Melanie Mitchell, the character Cindy Morgan is now playing. In other words she is playing the character here that her former character was jealous of.
This episode was a failed attempt to create a spin off series about the two detectives.
Detective Kennedy tells Detective Mitchell while in the frozen meat locker that she couldn't believe Rocky punches "these" referring to the hanging meat. They then go through the secret entrance to meet Avrom. Avrom was played by Tony Burton who played Apollo and Rocky's trainer in all the Rocky movies.
The actor Paul Gale who plays Lt. Richard's also plays two other characters in other chips episodes.
The house from the party where the detective punches the lady is the same house in another tv show: Charlie's Angels Season 4 Episode 17 - Home $weet Homes I don't know the address or if this is studio property and it is not mentioned in the filming locations.