Incident arising out of unknown cause and further inquiry
22.—(1)  Where the cause of the incident cannot be ascertained by the Safety Authority upon completion of its inquiry into the complaint or information under regulation 19 and the incident resulted in loss of life, serious injury to any person, or damage to any property, the Safety Authority may —
(a)suspend the supply of the registered controlled goods; and
(b)extend its inquiry into the complaint or information for a period not exceeding 30 days.
(2)  Where the cause of the incident cannot be ascertained by the Safety Authority upon completion of its inquiry into the complaint or information under regulation 19 and the incident resulted in damage to one of those registered controlled goods or injury to any person (not being a serious injury), the Safety Authority may extend its inquiry into the complaint or information for a period not exceeding 30 days.
(3)  The Safety Authority shall notify the Registered Supplier in writing of its decision made under paragraph (1) or (2), and where the supply of the registered controlled goods is to be suspended, the suspension shall take effect from the date of such notification.
(4)  Where, at the end of a further inquiry, the Safety Authority determines that the incident occurred as a result of any of the causes specified in regulation 20 or 21, the Safety Authority shall proceed in accordance with the provisions of regulation 20 or 21, as the case may be.
(5)  Where the Safety Authority —
(a)is of the view that a further inquiry is not necessary; or
(b)having completed a further inquiry, is unable to ascertain the cause of the incident,
the Safety Authority shall notify the Registered Supplier in writing accordingly and allow the Registered Supplier to make, within 30 days of the date of the notification, any explanation the Registered Supplier may wish to offer in respect of the incident and any evidence in support of such explanation.
(6)  Where, upon considering any explanation and evidence provided by the Registered Supplier under paragraph (5), the Safety Authority is of the view that the supply of the registered controlled goods should in the interests of public safety be discontinued, the Safety Authority shall prohibit the supply of the controlled goods.
(7)  Where, upon considering any explanation and evidence provided by the Registered Supplier under paragraph (5), the Safety Authority is of the view that the supply of the registered controlled goods will not prejudice public safety, the Safety Authority shall —
(a)subject to such conditions as it thinks fit, lift the suspension on the supply of the controlled goods; and
(b)together with the Registered Supplier or otherwise, take such steps as the Safety Authority thinks fit to ensure that such an accident or incident does not occur again.
(8)  The Safety Authority shall inform the Registered Supplier in writing of its decision made under paragraph (6) or (7).