Will be as brief as possible but after some advice please. My ex has son from previous marriage. The boys mother has always been a tad flaky regarding being home on time when he's been dropped back, there have been instances that my ex has brought his son back home (100 mile round trip) after she has failed to come home. Last night ex received a call from his son at 21:30, distraught as his mother had gone out to a party at 18:00 and was still not home. My ex called the Police who attended straight away. By 10:30 she still wasn't home, so he drove to the house. She arrived back at 23:30, drunk. He has taken his son back with him and has learned that this has happened on a regular basis, but his son didnt call him. I wont go into the whole background but the child has not been taken care of on many levels since I've known him (4 years+) My ex wants to look at getting full custody, but is at a loss at where to start. As much as my ex is a cockweasle (IMO), he is a good Dad to his son and our daughter and genuinely wants the best for his son. Any advice gratefully received.