Any person who uses in trade or industry, or has in his possession for use in trade or industry, any weight, measure or instrument for weighing or measuring-

(a) which is false or unjust; or

(b) which is not authorised to be used under section 9; or

(c) which is not marked or certified in conformity with section 10; or

(d) which is not verified, stamped, certified or authenticated in conformity with section 11 or 12; or

(e) in respect of which a certificate of verification is not in force, shall be guilty of an offence and liable on summary conviction to a fine not exceeding ¢500.00 or to imprisonment not exceeding twelve months or to both.