Where it comes to the knowledge of a local authority that there is in their area any child over compulsory school age who at the time when he ceased to be of that age or at any subsequent time was, but is no longer, in the care of a local authority under section 2 of this Act, then, unless the authority are satisfied that the welfare of the child does not require it, they shall be under a duty so long as he has not attained the age of eighteen to advise and befriend him.

Where a child over compulsory school age ceases to be in the care of a local authority under section 2 of this Act and proposes to reside in the area of another local authority, the first mentioned local authority shall inform that other local authority.

Where it comes to the knowledge of a local authority that a child whom they have been befriending in pursuance of this section proposes to transfer or has transferred his residence to the area of another local authority, the first mentioned local authority shall inform that other local authority.