The problem with these case studies are that they are small. If you don’t know what’s what and your pimp tells you it’s illegal and you can’t go to the police, you might believe them. If it’s widely and commonly known that it’s legal and that the police will actually help you, then that will change the results. That and if you throw the weight and resources of, oh let’s say, DEA marijuana enforcement against human trafficking, that will also change the results.