At around 5:18 into the episode, when Reed and Malloy are talking about Malloy getting smacked in the bar and not going by the book, when the scene cuts to a close-up of Kent McCord, the camera is very out of focus compared to the same shot on Martin Milner. This "fuzzy" camera would stay this way the rest of the episode. Because there was no "video assist" back then to view what the lens was "seeing", it's possible that the focus ring could have gotten bumped after the camera was in place and since they would have shot all of McCord's lines back to back without moving the camera, once bumped, it wouldn't have been discovered until the film was processed. By then, it was too late to re-shoot the lines so they just used what they had.
Reed: (following a grilling by Lt. Moore after they let a wanted criminal go) That would seem bad.
Malloy: It's worse than that. He also happens to be right!
Malloy: (to Reed about another officer who was suspended for policy violations) Ya know, sometimes you can go strictly by the book and wind up just as wrong.
This episode about going "by the book" may have been one of the "political" episodes Adam-12 had to produce during it's seven seasons. According to writer Stephen Cannell, there was a tug-of-war that went on constantly between the LAPD Sgts. that were assigned as technical advisers (who would have to approve the scripts) and the writers, who went on ride-a-longs with real street officers and saw how it really was on patrol. The advisers always wanted the scripts to reflect how it was supposed to be done, while the writers wanted to write what they saw on the streets. So several episodes during the show's run addressed procedure and "doing it by the book."