I know, 11-12 years ago, maybe longer, that there were cameras at an in-call location for an agency that did a lot of business. I am not sure of the particular locations in the apartment but I saw the closet, by mistake, that housed the recorders. There were 6-8 of them. Go figure. I never saw a film of me in action or any of the girls. I used the agency and that apartment several times. I "asssumed" it was for security. The internet was younger then, but who know.