These slaves are being treated like livestock, which is what slaves are, and this is one means for a buyer to purchase a slave.
I can just make out this slave is in the ring , and the red banner at the back, states it is some industrial estate in Skipton. Unless I am mistaken, there only the place called that and that’s in Yorkshire!
This slave is being held in a holding cell, but I doubt if he is one, because he is not collared, unless that is to come, also he has footwear. That is a no-no for a slave being bought.