507. Unlicensed sale of endangered plant species.

It is an offence for any unlicensed person1 to sell, offer or expose for sale2, or have in his possession or transport for the purpose of sale, any plant, whether live or dead3, which may be sold only under licence4, or any part of or anything which derives from or is made wholly or partly from any such plant5. A person is not, however, guilty of this offence if he proves to the satisfaction of the court that at the time when the restricted article