Unfortunately, the moral brigade have too strong a voice and as a result, politicos are dead against properly legalising and regulating the sex industry, without which provides wide open opportunities for trafficking.. And let's face it, there will be a select few punters out there who get off on knowing they are bonking someone trafficked, but even then, in a properly regulated industry where things like proof of eligibility of employment is required, a select few SPs can give the impression they are trafficked for what is hopefully a very tiny niche..
I have a formula in place.. there are two positive reviews I have on here. So, when I get the chance, should I, they will be my go to.. They are safe, good at what they do, and would be in the lowest percentile of probability of being trafficked or other nefarious activities. Beyond them, I would look for someone similar as I think that sort of profile either isn't trafficked or is free of their ex trafficking masters.. Of course, in the latter case, that still raises questions.. but until this industry is properly regulated, that is all we (in my case very part time) punters can do.