CBS News reported that the season premiere of 48 Hours Post Mortem, in a video listing for the season premiere of 48 Hours Post Mortem, covers an undercover operation that used chewing gum to catch a killer in two cold cases.
According to the listing, correspondents Anne-Marie Green and Peter Van Sant discuss how Detective Susan Logothetti and her colleagues developed the ruse and what it was like to confront the murderer, identified as Mitchell Gaff. The listing describes the operation as a "brilliant undercover operation," a characterization this report does not adopt.
The listing names the correspondents, the detective, and the murderer, but it does not describe the ruse itself, how the gum was used, when the crimes occurred, or where the cold cases were investigated.
CBS News also said the episode addresses why Gaff spent over two decades in a treatment center. The listing does not state that reason, and its description ends mid-sentence, so the rest of the program's account was not available for this report.
The listing is a promotional description of a television program rather than a reported article, and it names no author. No other outlet's coverage was available to corroborate its account, so the details of the operation rest on the program's own description as summarized by CBS News.
Other coverage of the program, if any, would be needed to confirm the timing and results of the operation, and this report does not supply them.
Sources: CBS News: The Detective and the Chewing Gum Sting | Post Mortem.