Name change as extremely outing.
Last night ex H arrived half an hour late (unusual) to collect the children and he was drunk. He had text me 20 minutes before he arrived to say he had just got off the phone at work, however he was actually drinking with a friend. He had then driven to my home & obviously intended on driving the children to his. I didn't let him obviously and I drove him back. He denied being drunk repeatedly, even when I threatened the police. He was slurring and not fully aware. He admitted eventually to having four pints but he used this as a benchmark whenever he was questioned in our relationship. He has a history of habitual lying and inappropriate behaviour linked to drink.
Anyway, this has been reported to the police and I'm not sure where to go from here in terms of contact. He lives with his parents still. His mum downplayed the entire thing and made excuses for his behaviour.
This isn't the first questionable behaviour he has displayed. The last one of note ended up with the police and social services turning up at his door due to two parents at soft play reporting his behaviour towards DS. He had been shouting at him and it appeared he hit him but he says he was pulling his top away from his mouth (he used to bite holes in them). The week before same DS said at soft play my ex stood on his foot to stop him getting up. This was January 2020.
About a year ago I asked him to stop drinking during contact time with the children too as I said it was setting a bad example because they come home and talk about it to me. He has mostly stuck to this.
My brain says stop contact but I know he has a legal right to it. The children adore him but I don't feel he is safe and I honestly feel terrified at the prospect of him ever living alone and having them there (he's looking to buy). His current contact is a midweek collect from school and stay for tea, plus Friday overnight until Saturday day.