Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
How old is your son and what contact doe she have with his father?
Is there an existing Court Order in place?
Is there a Court Order in place?
I assume your ex's parents are useless as any sort of safeguard for your child?
It is clear that you cannot trust your ex to remain in a safe condition to care for your child - or for his parents to protect the child if necessary
That being the case it is reasonable to suggest that contact moves to a Contact Centre
until the issues can be resolved.
You should also offer to discuss matters with him using Family Mediation
If he is not happy with this he will have to discuss it with you in mediation - and then apply to the court if it cannot be resolved.
You can then ask for drug testing!
You can read more here
I hope that this is of assistance - please ask if you need further details
Is it likely that he would do so?
Then you can make an urgent applictaion for a Prohibited Steps order to prevent him removing the child from school or from your care
This is done using a Form C100
and paying the fee of £215