(a) the officer seizing may either require the occupier of the place in which it was seized (whether a building or not, or a carriage, boat, or vessel), to detain the same in such place, or in any place under the control of such occupier, or may remove it in such manner and to such place as will, in his or her opinion, least endanger the public safety, and there detain it, and may, where the matter appears to him or her to be urgent and fraught with serious public danger, and he or she is Director of Finance and Planning, or is authorised by an order from the Director of Finance and Planning or a justice of the peace, or from the Commissioner of Police or any other police officer of superior rank, cause the same to be destroyed or otherwise rendered harmless; but, before destroying or rendering harmless the same, he or she shall take and keep a sample thereof, and shall, if required, give a portion of the sample to the person owing the explosive or having the same under his or her control at the time of the seizure; and any such occupier who, by himself or herself or by any other person, fails to keep the same when he or she is required under this section to detain it, and any such occupier or other person who, except with the authority of the officer seizing the same, or of the Director of Finance and Planning or the Commissioner of Police, or, in case of emergency, for the purpose of preventing explosion or fire, removes, alters, or in any way tampers or deals with the same while so detained, on being convicted thereof, is liable to a penalty not exceeding $240, and in default of payment, to imprisonment for any term not exceeding 3 months, and is also liable to forfeit all explosives and ingredients thereof which are, at the time of the offence, in his or her possession or under his or her control at the said place;