Do you mean like, people who create traffic literally, or like 'human trafficking'?
If so here's an excerpt from an article relating to the idea:
"Japan is a destination country for women and children who are trafficked from China, Southeast Asia, Eastern Europe, and to a lesser extent Latin America for sexual and labor exploitation. Many of the trafficking victims were coerced into commercial sexual exploitation in strip clubs, sex shops, hostess bars, private video rooms, escort services, and mail-order video services."
If this isn't what you were talking about I feel real dirty.
