3yr old live with mum since birth, dad had drug issues domestic abuse mum had to leave to live with family, toddler settled into nursery mum started having mental/ drug issues, seeked support and has months of recovery still engaging with services, dad does not as he doesn't talk to anyone about his issues. Dad took toddler from home 2 months ago stopped nursery and family contact, and put toddler into hostel with him, mum collected him back as dad was not financially able to look after son and stopped him from going nursery/ couldn't wash clothes feed him dinners due to facilities and blamed it on mum safeguarding issues. Mum relocated to stay with family for a few weeks done work with ss and recovery and ss closed case, mum now wants to go home as 6 weeks holiday coming to end, wants son to have contact with dad aswell and get back to normal life but dad saying he will take him if she comes back so she's best staying 4 hours away from her home when it was only meant to be for a few weeks, told her not to come back at all or he'll take him. Any advice?