Dinner Date - S2-E10
Visible crew/equipment: When Johnny and Roy help the woman lift her daughter out of the car, and place her on the gurney at Rampart, the outlines of the mic transmitter and wire are visible on the back of Johnny's shirt.
Dinner Date - S2-E10
Visible crew/equipment: After Tommy rides home on his bike, Janet has the seizure, and when Roy and Johnny rush over to her the outlines of the mic transmitters are visible on the backs of both of their shirts, as well as the officer's shirt.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
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