An investigation may
be carried out for any or all of the following purposes —
(a) to
ascertain whether the provisions of the Act, the regulations or provisions
listed in Schedule 8 have been or are being complied with;
(b) to
ascertain whether any requirement contained in a river protection notice has
been or is being complied with; or
(c) to
ascertain whether there are reasonable grounds to recommend under
section 90 that a river protection notice be issued, and to obtain
evidence for the preparation of a report under that section.