I'm in England
My adult brother is experiencing a mental health crisis and he's very unwell. Local crisis team is involved and he was referred for a mental health act assessment but they couldn't perform it because by the time it's his turn, he was staying at another address so they could not visit him. They did not tell us what is the date or time of their visit and we only found out after a few days of the supposed appointment.
A few days ago, he booked a ticket to the country where we were born: middle east, unstable, no mental health system or laws, people have 0 awareness of mental health, gangs, some people are armed, kidnapping for ransom happens, sectarianism, ... . If he gets into a fight or a serious argument with the wrong people, because he's very irritable and angry and has paranoia and delusions, he's at a serious risk of harm. The crisis team is saying because he's refusing their normal nurse visits, they can't know his exact situation and they're applying for a mental health act assessment but it can take a few weeks. His flight is on the 18th. He won't be here and he is not coming back.
What are our options to stop him from travelling? Can the police confiscate his passport? if yes, then he can apply for a new fast tracked one anyway.