Regulation 16(1) Where an inspector has reason to believe that(a) during an exploration or mining activity a specific minimum standard is not being observed,(b) a dangerous occurrence as specified under regulation 27 has occurred, which may not have caused any personal injury or loss of life, or(c) loss of life or serious bodily injury has resulted from any accident associated with operations in or in relation to a mine or prospecting operation, the inspector may hold inquiries into the failure to observe the minimum standards or into the accident or occurrence.(2) For the purpose of an inquiry under sub-regulation (1), the inspector may as soon as possible(a) summon a person whose evidence the inspector considers likely to be material to the determination of any question relevant to the subject of the inquiry;(b) take evidence on oath; and(c) require the production of any relevant book or document in the possession or control of any person.(3) The inspector shall give three days' written notice of the time and place of the inquiry to the holder or manager of the mine which is the subject of the inquiry and the holder or manager shall on receipt of the notice, ensure that all persons who are required to attend the inquiry are notified of the time and place of the inquiry.(4) A person who, without reasonable cause, neglects or fails to attend an inquiry on being summoned or who on attending an inquiry refuses to answer any question or produce any relevant book is liable to pay to the Commission a penalty of not more than ten thousand United States dollars.(5) The holder or the manager of the mine may attend or be represented at the inquiry and the Chief Inspector may allow any other person to appear or to be represented at the inquiry.