An authorised officer may seize any food, or any vehicle, equipment, package or labelling or advertising material, or any other thing at all, that the authorised officer believes on reasonable grounds--
(a) is evidence that an offence under this Act or the regulations has been or is being committed, or
(b) does not comply with a provision of this Act or the regulations, or, in the case of food, is labelled or packaged in a way that does not comply with a provision of this Act or the regulations.