The power to enter land conferred in section 93 includes a right for such persons and, additional materials and equipment, (including vehicles, machinery or plant) to be taken onto the land in question or to do anything which is reasonably required to fulfil the purpose for which entry is taken (subsection (1)). A person may not demand entry to occupied land unless a period of notice is given or the entry is authorised by warrant except in the case where emergency powers are being exercised (subsection (2)). Subsection (3) specifies what must be included in any notice of intention to enter land. Subsection (4) requires any authorised person to produce written evidence of authorisation on request.