My ex just picked up our son, he said that he's looked into it a lot and because he has parental responsibility he can tell me now that at the beginning of March he's taking our son to Scotland for a week and there's nothing I can do about it.
We have a child arrangements order that states that he has him one day a week with one overnight attached, and pick up/drop off is 8.30am or 5.30pm depending on which side of the day the overnight is.
He'll be in violation of the court order if he does this without my consent?