Character mistake: The second Mrs. Loomis describes Mr. Loomis as having brown eyes to Friday and Gannon. Later when they are interrogating Loomis, a close-up on his face show his eyes are blue.
More mistakes in Dragnet 1967
Trivia: In this episode, the murder victim's name is given as Reiko Hashimoto, and at one point, Gannon shows Friday a couple of photographs of her. Reiko Hashimoto was the maiden name of Reiko Douglas, the wife of comedy writer, author, and perennial talk show guest Jack Douglas, and the photographs used are of her.