In the UK, the police don't get involved to escort them back; it is regarded as a civil matter. However, whilst taking the kids W said to them "shall mummy call the police?" which upset the kids. My L is dealing with it. I remain extremely calm at all times as W is twisting and lying about anything at all to use against me for the next custody case. I have asked W to meet to talk about how we can make things easier for the kids but she has refused. WAW/WW has become a law unto herself. I have to allow the legal system to deal with it. I worry about that because W is telling them lies. I've been a stay at home Dad and still live in the family home and so her best chance to get custody is to lie and try to get me into trouble. She has tried several times so far and failed.