Complicated scenarios are easy to trip over, and each degree of deception lessens our credibility. Expectations Before proceeding, have a clear understanding of what may be uncovered with the hidden camera and whether it's likely to be there. Fishing expeditions are a waste of time, resources and money. Doing your homework improves the chance that you will expose the wrongdoing while being fair. On the technical front, make sure that everything is working correctly and that the camera operator understands how the equipment works.
Decisions here can be subjective.
Each situation is unique. Several years ago, I used some hidden camera video of the inside of a store. Although the video revealed nothing, it covered holes in the broadcast and was visually more interesting than exterior shots. It didn't harm anyone, but today I would probably not use it. Generally speaking, if the video has little intrinsic value, it probably should not be shown.