Many victims of human trafficking are led to believe by organized criminals that they are being offered work in hotels or restaurants or in child care and are forced into prostitution with the threat or actual use of violence. Estimates of the number of victims vary from 1,000 to 7,000 on a yearly basis. Most police investigations on human trafficking concern legal sex businesses. All sectors of prostitution are well represented in these investigations, but window brothels in particular are overrepresented.