Does anyone know of any websites in the Uk where i could research getting my 16 year old runaway daughters?

return home by the police i've found out that by lawa my daughter is not allowed to leave home of her own free will until she's 18 or can prove in a court of law that she is able to cope for herself financially and emotionally of which i know she is unable to do due to the fact it has just been myself and my daughter..I've never been violent towards my daughter we've always had a close loving relationship until three weeks ago when she got involved with a bunch of teenagers that just totally led her astray and turned her against me.. At the house she is staying at i wouldn't exactly say there was a competent adult present the woman can't even see for herself that her own grand daughter is been neglected.. the house is full of runaways and she entices anti-social behaviour and my daughter is torn in two she wants to come home but she's too scared to leave in case her so called friends fall out with her.. My daughter was settled in school and doing really well until 3 weeks ago