15.—(1) Regulations may make—
(a)provision for requiring, prohibiting or regulating the presence in food or food sources of any specified substance, or any substance of any specified class, and generally for regulating the composition of food;
(b)provision for securing that food is fit for human consumption and meets such microbiological standards (whether going to the fitness of the food or otherwise) as may be specified by or under the regulations;
(c)provision for requiring, prohibiting or regulating the use of any process or treatment in the preparation of food;
(d)provision for securing the observance of hygienic conditions and practices in connection with the carrying out of commercial operations with respect to food or food sources;
(e)provision for imposing requirements or prohibitions as to, or otherwise regulating, the labelling, marking, presenting or advertising of food, and the descriptions which may be applied to food; and
(f)such other provision with respect to food or foodsources, including in particular provision for prohibiting or regulating the carrying out of commercial operations with respect to food or food sources, as appears to[F1 the Department] to be necessary or expedient—
(i)for the purpose of securing that food complies with food safety requirements or in the interests of the public health; or
(ii)for the purpose of protecting or promoting the interests of consumers.
(2) Regulations may also make provision—
(a)for securing the observance of hygienic conditions and practices in connection with the carrying out of commercial operations with respect to contact materials which are intended to come into contact with food intended for human consumption;
(b)for imposing requirements or prohibitions as to, or otherwise regulating, the labelling, marking or advertising of such materials, and the descriptions which may be applied to them; and
(c)otherwise for prohibiting or regulating the carrying out of commercial operations with respect to such materials.
(3) Without prejudice to the generality of paragraph (1), regulations under that paragraph may make any such provision as is mentioned in Schedule 1.
(4) In making regulations under paragraph (1),[F1 the Department] shall have regard to the desirability of restricting, so far as practicable, the use of substances of no nutritional value as foods or as ingredients of foods.
(5) In paragraph (1) and Schedule 1—
(a)references to food shall be construed as references to food intended for sale for human consumption; and
(b)references to food sources shall be construed as references to food sources from which such food is intended to be derived.