BBC Radio have a read a statement from (presumably) Bethel confirming the family are witnesses but that they are not aware of the reasons for the child being removed from hospital.
The BBC were also at pains to say that, at the moment, the motivation is not clear - it could just be they want to take the child away for a holiday. Even the police were not able to confirm if the child was a Ward of Court. If not then what the parents choose to do is still their right and no crime has been committed.