If a person holds an approval under section   27, an authorised officer may enter certain premises at any reasonable time of day for the purpose of finding out whether the person has complied with Part   3 or 6 or a condition of the approval.

The authorised officer must give the person at least 24 hours' notice of the officer's intention to enter the premises.

An authorised officer who enters premises may exercise monitoring powers. The authorised officer may be assisted by other persons if that assistance is necessary and reasonable.