Yes, he is on the birth certs, in fact the kids have his surname. He has been having regular arranged contact, informally agreed.
The back story is that he and his ex had another informal agreement regarding the introduction of new partners to the kids. My son adhered to that, but his ex didn't, causing a huge argument. The police were involved, and after the ex invited my son to sort matters out the following morning, he stupidly turned up and she called the police again, so now he's on rem,and for breaking bail, and threatening behaviour.
We have learnt this past week that she has vacated her flat, removed the 3 year old from nursery, and informed them that she has moved out of the area for good. She has made no attempt to inform my son, or us, his family as to where she has taken them.
I hope this info helps.
Initially the afternoon on Weds 1st Oct, then returned to his ex's flat at her request (and against bail conditions) the following morning, when she called the police again. He left the scene and handed himself in to police later on the 2nd Oct when he was made aware that they were looking for him. He was held overnight, then taken to court on the 3rd when he was then held on remand until his initial Crown Court hearing in two days time.