Dealing With Forced Marriage
This is news to me at least, the government has an initiative set up to combat forced marriages and protect those who might be force into them. Last year 1,600 suspected cases were reported (with presumably many more unreported) and a large amount of them involved young people. They've just released a massive guidance document (pdf) that if you're really geeky you can read, but the advice for youth workers is essentially be aware of it and then treat it as you would any other child protection incident where there is risk of immediate harm.