[hasbroslasher]

The costs of calling the police to your own restaurant are wayyyyy higher than you seem to be thinking. Everybody in the building will remember their time at your restaurant as "that one time the police showed up and took that guy in who was screaming the whole time about how the hostess is lying and he's a father of a family of four, goddammit!"

Even in the best case, where the cops show up, talk to the guy, cite him (or something) and leave, something like touching/grabbing a staff member or making inappropriate comments is going to be really hard to catch or prove in a court... Having your manager go up to the table and calmly tell him that it's time to go is going to be way less likely to disrupt other customers.

And last, what restaurants have you been to that have CCTV? Fast food, definitely, but I don't remember the last time I sat down for a nice meal out and noticed security cameras on the walls. This produces an atmosphere similar to calling the cops into your restaurant: you're implying that people who go there are sketchy enough to deserve being surveilled or brought in by the authorities at any point.

[leesalminen]

Every restaurant I’ve been to has cameras, at a minimum around cash drawers.

I’m scary good at spotting cameras though. It’s a weird skill.

In fact, I’m at a fancy restaurant at a yacht club in the Cayman Islands right now and spotted 2 cameras.