Get the facts!
Look, the cops know what is going on in this world, and are not after legit ladies running a licensed business. Your grapevine is full of this BS and other interesting fabricated stories, but what you believe is your business. Just remember, if you haven't seen it with your own eyes, it ain't worth repeating. There are a lot of bullshiters out there; you've just been victimized by one of them.
What cops are doing out there:
1. Maintaining a presence to protect street workers from serial rapists.
2. Looking for illegal immigrants who are flown in from the Far East, having agreed to pay ridiculous amounts of money ($40K plus) to be enslaved into repaying the snakeheads that brought them here by working long hours, under the worst possible conditions.
3. Looking for illegal substances that are prevalent in this business, and are also used in #2 to enslave the poor girls even further.
4. Looking for underage girls working in this business.
Any police representative would be more than happy to verify what I have just written, and show you the relevant facts and stats.
You should talk to your local LE; your taxes pay for them, now ask them to inform you.
All this fear about policemen and women has created these giant myths that have no substance whatsoever.