100Powers to gather evidence

100 Powers to gather evidence (1) The Hearing Commissioner may do any of the following in relation to an inquiry: (a) by summons, require a person to attend before him or her; Business Tenancies (Fair Dealings) Act 2003 63 (b) by summons, require the production of books, papers or documents; (c) inspect books, papers or documents produced before him or her, retain them for a reasonable period and make copies of them or of their contents; (d) require a person appearing before the Commissioner to give evidence on oath; (e) require a person appearing before the Hearing Commissioner, whether summoned to appear or not, to answer relevant questions put by the Hearing Commissioner or another person appearing at the inquiry. (2) A person must not: (a) without reasonable excuse, fail to comply with a summons under subsection (1); or (b) refuse or fail to comply with a requirement of a Hearing Commissioner under subsection (1).