Girl married at 12, mother at 13 now 18, stuck in a life of misery

I'm a student nurse, which means I've the least authority in hospital wards. Today I met a girl who is the same age as me (18 years old) admitted in the hospital, her disease was something which should have been treated and her discharge from hospital should have been done days ago but for some reason she has been kept here without any reason since last 20 days. I looked into her case file and while talking to her I asked her and found out: 1. She was married at 12 years of age or before that 2. She has no age verification document (meaning she could be below 18) {for the note: everyone getting admitted in hospital mostly has age Verifying govt document} I suspect that she doesn't have age verifying document because she isn't actually 18, but her husband faked her age to avoid legal liabilities. (Because she had a child at 13 but her kid is apparently 3 years old, which doesn't make any sense cuz she's 18) 3. Her husband is 20 years older than her or more ( at least that's what she said, but when I saw her husband he appeared to be in his 50s) 4. Her husband abuses her her mother in law and father in law torture her by not letting her eat if she talks to her mother or father. 5. She's not allowed to visit herfmother and father. And she getsbeatenb by her husband. 6. Her husband doesn't allow her to work in handicrafts or continue her education in any way fearing she'll "fall in love with someone else and run away". 7.Additionally the main reason why she was not allowed to leave hospital was because, She's suicidal and has uncountable scars from SH. How can I help her? (The incharge can't help her, because apparently "we gwt people like them every now and then but we can't possibly help them all" And its not worth it) EDIT: I'LL LIKE TO ADD A FEW ADDITIONAL INFO 1. She's from a muslim community. 2. Her husband might actually come tomorrow if I report to police, and if he gets the chance, he'll actually kill her. 3. Her family doesn't give an f about her. 4. Her husband had previously had fights with her and choked her (she has scars around her neck, which she claims are from falling down the stairs) 5. Her husband comes to visit her and picks fights with staff nurses, yesterday he almost beat someone up (this is a female only ward so he made some patients way too uncomfortable)