(1) The Assembly, or a persons authorised by it, may require any of the persons prescribed in paragraph (4) to provide to the Assembly or the persons so authorised (as the case may be) an explanation of—
(a) any documents, records or items inspected, copied or provided under sections 72 to 74 of the Act;
(b) any information provided under those sections; or
(c) any matters which are the subject of the exercise of any functions of the Assembly under section 70 of the Act,
in circumstances where the Assembly considers the explanation necessary or expedient for the purposes of Chapter 4 of Part 2 of the Act.
(2) The Assembly or the persons so authorised may require the explanation to be provided —
(a) in person (unless the person required to provide the explanation is a body or persons corporate or unincorporate); or
(b) in writing.
(3) Where the Assembly or the persons so authorised require the explanation to be provided in person, the explanation must be provided at a time and place specified by the Assembly, and the Assembly must give the person required to provide the explanation reasonable notice of that time and place.
(4) The persons prescribed are—
(a) a Welsh NHS body;
(b) a chairman, member, director or employee of a Welsh NHS body;
(c) a member of a committee or sub-committee of a Welsh NHS body;
(d) a service provider;
(e) a chairman, director or employee of a service provider;
(f) a person (other than a person prescribed in sub-paragraph (e)) who is assisting a service provider in the provision of health care for a Welsh NHS body;
(g) a local authority or a member or officer of a local authority;
(h) an elected mayor of a local authority within the meaning of section 39(1) of the Local Government Act 2000 ;
(i) a person (other than a person prescribed above) who is assisting, has assisted or is to assist a Welsh NHS body in the exercise of its functions.