( borrowing under 24 hours?)
Bogtrotter, I don't like to disagree but you are simply wrong. Occupier is not defined and has never been tested by way of a stated case. As I said 16(1) is more liberal than borrowing a shotgun in the same circumstances.
8x 57 S.21 only applies those that have been sentenced to a term of imprisonment that bans them for 5 years or life depending (3months -3 years=5: over 3 years for life.) So you can still have a criminal record and take advantage of s.16.
Frank