The first of 19 consecutive cases alliterative titles, the last being The Case of the Credulous Quarry (1960).
If actor Sid Tomack (the night clerk) looks familiar, it's because he's seen in the opening credits, sitting behind William Talman and Ray Collins. He sort of peeks over their shoulders to catch a glimpse of the folder that Perry hands them. This is one of only three credited appearances for him on the series.
The establishing shot of "Cloverdale, Utah" is the same scene used for "Upton" in The Case of the Larcenous Lady (1960).
The opening shot of Cloverdale Utah appears to be a stock shot of Pine Avenue, just south of West Ocean Boulevard in Long Beach, California.
During the trial, Bradbury testifies that Mason informed him of Patton's death at the same time as the police officer on the scene reported the incident. Perry and Della had pretended they had not entered Patton's room, and Perry locked the door as they left. Hamilton Burger points out this fact to the judge that Mason couldn't have known about Patton's death in a locked room. The judge warns Mason this could have serious personal and professional consequences, and Mason argues he will deal with it later at the proper place and time. There is no follow-up in the show on this serious ethical breach.