The problem with the police in London is that you are in Scotland and you are dealing with it on the telephone.
I don’t know what communication there is between Scotland & London police forces but it would certainly be worthwhile going to your local Police Office and asking them to speak to each other.
You certainly have a complaint to make to the Chief Constable (or whatever he is called in Scotland) and the Independent Office for Police Conduct.
As it is, he is in contempt of court and you need to make an emergency application to court to enforce the order and ask the court to put a penal notice that unless he returns the children by a particular deadline (a couple of days hence) he is liable to be arrested.
Making an application for an emergency order is not really a do it yourself job. You would be better seeing a solicitor because you have more chance of getting it in front of a judge now than if you do it yourself.
You say he is refusing to return the children. You don’t say whether he is refusing to return them ever or whether he wants to keep them for another couple of days. If it’s the latter, it’s not really worth making an application on an emergency basis but you certainly do need the order extending to put a penal notice on it that if he does this again, he will be arrested. Then you can present that to plod and plod are under a duty to arrest him and charge him with contempt/breach of the order.
Because of his recent assaults against his ex, and because of missing school and because they have no change of clothes, this is certainly a child safeguarding issue and an emergency application is, in my opinion, essential.
This is actually child abduction and therefore in England you would be eligible for legal aid although I don’t know what the situation is in Scotland. You would apply to the Scottish courts because the Scottish order is applicable in England.
Can I clarify anything else for you?
I am happy to answer any specific points arising from this.
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