How can you ever know they are non-trafficked?
Great answer from Mr. Smith

All you can do is stack the odds in your favour, a big clue are the ones who stay put rather than tour. Some are quite explicit about their indépendant status, many clearly state they work alone. Also UKP reviews, you can usually get a good idea from these, other punters experiences are great grist for the mill.
Bottom line, no guaratees but you can stack the odds if you research well.
