Any person who—
(a) being charged by law with any duty respecting the landing or delivery of any explosive substance or of any acid or other thing of a dangerous or destructive nature, from any vessel, fails to perform that duty; or
(b) being concerned in the landing of any such substance or thing from any vessel, violates the provisions of the laws relating to such landing;is guilty of a misdemeanour, and is liable to imprisonment for 3 years.