You mentioned that earlier. I think it's one of the keys to the solution.
The police are trained to respond to emergency calls and complaints. Their work is crucial.
As for sex trafficking hot spots, like massage partners, transitional apartments and red-light districts, it's important to rely on street workers' knowledge. They've been there since the 1970s. They have information and expertise that is directly related to sexual exploitation victims. I don't know why they aren't consulted more often. For god's sake, let's recruit more of them and raise their pay. I don't think they are used nearly enough.
There has been a shift in the approach being used by neighbourhood or community police, and that's a good thing.
This line of work needs to be promoted.