(2) As used in this section:
(a) "Explosives" means dynamite, blasting powder, black powder, nitroglycerin, detonators, nitro-jelly, prima-cord and detonating fuse.
(b) "User" means any person using explosives for any purpose whatsoever, and regardless of whether such person is being compensated for such use. [1963 c.384 §1]