Visible crew/equipment: After the squad and engine pull up to the theater, when the manager of the band tells Johnny about the musicians wigging out onstage and then 51's guys follow him, the reflections of the camera dolly and moving crew members are visible on the surface of Squad 51.
Visible crew/equipment: At the horse ranch, after Bill falls off the horse again while the squad is chasing after him, when Roy kneels beside Bill we can see the shadow being cast by production equipment, presumably the reflector screen, on the ground behind Roy. Then after John checks Bill's ears and pulse, just as he contacts Rampart for the second time, we see movement which looks like a sleeve on the right side of the screen, beside John.
Visible crew/equipment: At the horse ranch, after the man falls off the horse John and Roy rush over, and as Johnny leans over him the bulging outline of the lav mic transmitter is visible on the back of Johnny's jacket.
Visible crew/equipment: While Johnny and Roy are with the unconscious man who ate daffodil bulbs, when the officer asks the bystanders to move back, the outlines of the lav mic transmitter and wire are visible on the back of the officer's shirt, when he turns around.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
stiiggy