232. Defences in proceedings for unlawful sale of regulated produce.

Where in proceedings for an offence involving the sale of any regulated produce1 it would have been a defence for the person charged to prove that the produce in question conformed to a prescribed grade2, it is a defence for him to prove:

  1.  

    (1)     that he bought or took delivery of the produce as being of a quality falling within that grade, and with a written warranty3 to that effect4;

  2.  

    (2)     that at the time of the commission of the offence he had no reason to believe the statement contained in the warranty to be inaccurate, that he then