Kim Leslie, partner at Digby Brown Solicitors, said Mercy’s death raised questions about the “systems of work that governed her life and the life of her child, Adriel.”

“Although we are at a very early stage, we are now investigating the circumstances of Mercy’s death and any failings in processes that may have contributed to this which will involve looking into the Home Office and Mears Group,” she added.

“Should there be evidence of negligence, neglect or a failure to act on the part of those who were responsible for the welfare of Adriel then we will see to it that he accesses the justice he deserves.”

If the case is successful all damages recovered will be placed in a trust for Adriel when he becomes an adult.

The Home Office has been approached for comment.