The squatters seem to follow a pattern where it appears they do whatever it is they do to obtain or manufacture drugs onsite on Wednesday night so they can dispose of items with Thursday trash pickup. Then there is a flurry of traffic over the next two or three nights (actually early mornings) to distribute.
This series of photo stills taken from video cameras occurred over two nights. Not the backpacks and bags coming and going. This level of trafficking, or more, is not uncommon and is happening in your backyard:
