An authorised officer may exercise the powers conferred by this Division for any of the following purposes--
(a) ascertaining whether the provisions of this Act or the regulations are being complied with or have been contravened,
(b) ascertaining whether the provisions of Part 4.5 of the Road Transport Act 2013 are being complied with or have been contravened,
(c) investigating a complaint made under this Act,
(d) obtaining evidence, records or information in relation to a matter that constitutes or may constitute a contravention of a provision referred to in paragraph (a) or (b).