The Commission, on the Commission's initiative, may conduct an investigation in relation to any matter if—
(a) the matter indicates that there may have been a failure by an unregistered disability worker to comply with an approved code of conduct; or
(b) the matter relates to an unregistered disability worker who—
(i) has been refused an NDIS worker screening check clearance by an NDIS screening agency; or
(ii) has had an NDIS worker screening check clearance suspended or revoked by an NDIS worker screening agency; or
(iii) has committed a prescribed offence; or
(iv) is the subject of an interim bar in relation to an NDIS worker screening check clearance; or
(v) is the subject of a banning order issued under section 73ZN of the NDIS Act or a prohibition order in relation to health services or disability services or other services involving the care of children that is made under another Act.