A social worker may say that they want to take your children from you. They cannot do this unless you either agree or they apply to Court and get an Order from the Court. The Court will only authorise a child being removed where there is a risk of harm.
The Police are able to remove children for up to periods of 72 hours only.
During the court proceedings assessments will be completed to make sure that the final plan for your child is the right one.
A social worker can ask you to sign a section 20 agreement which is voluntary.
If your child is removed from your care, then the local authority have a duty to arrange a reasonable level of contact for you.