Sch 3 para 29
Where a medicinal product is taken as a sample by a sampling officer in the exercise of any power conferred by section 112 of this Act, the provisions of subsections (1) to (4) of section 64 of this Act shall have effect as if the taking of the product as a sample were a sale of it to the sampling officer by the person from whom it is taken; and, if the product was prepared in pursuance of a prescription given by a practitioner, those provisions shall so have effect as if, in subsection (1) of that section, for the words “demanded by the purchaser", there were substituted the words “specified in the prescription"