Prohibition of adulterants in bake houses and mills

If any flour or other substance which under Bread and Flour Regulations may not be used in the making of bread for sale, is found in a bake house, or any substance which under those regulations may not be added to flour is found in a flourmill, the occupier of the bake house or mill, as the case may be, commits an offence, unless he proves that the substance in question was not intended to be used in the making of bread for sale, or as the case may be, was not intended to be added to any flour intended for sale. mills.