(1) The Assembly may in accordance with paragraph (2) require any person prescribed in paragraph (3) to provide to it, or to a person authorised by it, an explanation of any of the following—
(a) any documents, records or items inspected, copied or produced under sections 98 to 100 of the Act;
(b) any information provided under those sections;
(c) any matters which are the subject of the exercise of any functions of the Assembly under Chapter 6 of Part 2 of the Act,
in cases where the Assembly considers the explanation necessary or expedient for the purposes of that Chapter.
(2) A requirement under paragraph (1) must be given in a written notice which must also—
(a) set out the why the explanation is required;
(b) specify whether the explanation is to be provided in person or in writing (save that where the person required to provide the explanation is a body of persons corporate or unincorporate, the explanation must be required in writing); and
(c) where the explanation is to be provided in person, specify, and give reasonable notice of, the time and place at which it is to be provided.
(3) The prescribed persons are—
(a) a local authority;
(b) a member or former member of a local authority;
(c) an elected mayor or former elected mayor of a local authority, within the meaning of section 39(1) of the Local Government Act 2000 ;
(d) an officer or former officer of a local authority;
(e) a service provider;
(f) an employee or former employee of a service provider or any other person who is assisting or has assisted that provider in the provision of a Welsh local authority social service;
(g) a person (other than one listed in any of sub-paragraphs (b) to (f)) who is assisting or has assisted a local authority in the provision of a Welsh local authority social service.