I once saw in recent years a pick up truck from a well known late night venue in the middle of walking street, ( the exterior was emblazoned with their logos ), offloading a full load of the woman with kids gangs, (Cambodians ), in walking street late at night. It must be a big earner and clearly an organised operation.
Expect Pattaya to fill up with the nefarious as we enter high season, 2 1/2 years lost tourist income applies not only to legitimate business, and worth bearing in mind the police have likely lost out more than most.