The Children's Commissioner must, in particular, have regard to the United Nations Convention on the Rights of the Child in considering for the purposes of the primary function what constitute the rights and interests of children (generally or so far as relating to a particular matter).

The references in section 2(3)(i) and this section to the United Nations Convention on the Rights of the Child are to the Convention on the Rights of the Child adopted by the General Assembly of the United Nations on 20th November 1989 (including any Protocols to that Convention which are in force in relation to the United Kingdom), subject to any reservations, objections or interpretative declarations by the United Kingdom for the time being in force.