In order to vary the contact order, the court would need evidence of risk to your children and may also need a CAFCASS report. CAFCASS are a government body that the court can instruct to carry out checks on both parents.
If the court finds that your children may be at risk then they may vary the contact order so that your partner can only have contact with your children when supervised by a third party or, more unusually, stop your partner seeing them at all.
The court will consider the child’s welfare first and the older the children are the more the court will put weight on what they say that they want to happen.
If your partner has threatened to harm you or your children then you must go to the police straight away. If this is the case we can then advise you on obtaining an injunction.