DD is 14 months and visits her dad twice a week for 3 hours at a time..when he turns up on time or doesn't bring her back early. Basically he just doesn't really have alot in interest in her and I'm pretty sure he's only seeing her because he thinks I don't want him to. Not the case. Anyway. Last night he went out clubbing, I saw pictures of him on others social media, he has a history of getting into a ridiculous state when drinking. The nights he actually ends up at home instead of hospital or passed out somewhere he is incapable of anything for a good 24 hours. He's not even awake yet (hasn't read my message) and due to get DD in an hour but I've text him to tell him she won't be going to him when he's still drunk/hungover and she'll see him on their next arranged visit in a few days. 100% this will be a relief to him as, as I said he doesn't particularly enjoy having her anyway..but I know he'll kick up a fuss just to make it look like he cares/twist the story and make it look like I'm a control freak and him a trying dad yawn I don't think I'm wrong to be honest, my child's wellbeing comes first. Would you do the same?
But to keep it as you being concerned about her safety and welfare (and as evidence it's that and not stopping him seeing her) if he does fight the decision offer him 3 hours in home or local park or cafe or something and make sure it's in writing (email/text). Also say you will remain present but not interfere in their quality time.