Blue Heelers (1993) : 4x3

Dash discovers that her penchant for gossip may very well get her, and other people into hot water when she and Adam, overhear the Shire President, Roger Payne, having lunch with a woman who is definitely not his wife. While out on a surveillance operation to catch an extortionist who's been threatening to blow up a restaurant, the pair, bored with three days of sitting in the car with nothing to do except listen, finally hear something interesting. Unfortunately, while Adam and Dash are preoccupied, the real extortionists manage to get away, much to PJ's chagrin. PJ appeals to Tom to hold the investigation over longer, but the matter is out of Tom's hands-the surveillance equipment and manpower belong to another unit and he can't retain them without very good reason. PJ's worried-he's given his word that he'd solve the case, to Bluey, the frightened restaurateur, and now he may not be able to keep it. Dash is still obsessed with finding out who the mystery woman is, but is thwarted