(1) An inspector may enter a place under section 163 without prior notice to any person.
(2) An inspector must, as soon as practicable after entry to a workplace or suspected workplace, take all reasonable steps to notify the following persons of the entry and the purpose of the entry:
(a) the relevant person conducting a business or undertaking at the workplace;
(b) the person with management or control of the workplace;
(c) any health and safety representative for workers carrying out work for that business or undertaking at the workplace.
(3) However, an inspector is not required to notify any person if to do so would defeat the purpose for which the place was entered or cause unreasonable delay.
(4) In this section relevant person conducting a business or undertaking means the person conducting any business or undertaking in relation to which the inspector is exercising the powers of entry.