Sorry, I was going to expand on it and then got called by the guy giving me a lift so I just hit post.

It's typical in the UK that people with authority add two and two and get fourteen when there is any suspicion of human trafficking, any possible danger to children, any risk to health and safety, or the possibility of terrorism. It took a high court order to stop the police from doing no-suspicion stop and searches on anyone they wanted, notionally due to suspicion of terrorism (a power that in practice was used to harass photographers and racial minorities, who are still so harassed by private security in malls etc.).