Except its possible the cops didn’t know about the cameras. In fact its likely, because they would’ve deleted the footage anyway, regardless of whether it was them or the informant who planted the drugs. Either way, the cops had to know the informant was planting drugs. Otherwise what did he say to them after he left the store? “Hey, I just saw some crack on that guys countertop, go bust him!” Laughable. The cops definitely knew and planned the whole damned thing.