XH has taken DS in the his car in the front seat without any child or booster seat. It was a planned journey, his contact visit but I didn't do the handover and the journey is about 45mins.
He has form for not considering DS safety e.g leaving him unsupervised in bath at 18months (one of the reasons we are no longer together)
He is EA and passive aggressive so I don't think a reasonable conversation will sort this. What should I do?