"Any person duly authorised in writing by ... a local planning authority ... may at any reasonable time enter any land for any of the following purposes – ... (c) ascertaining whether an offence has been, or is being, committed with respect to any building on the land [under any of certain specified sections of the Act]"
"There will be many cases in which neither of these solutions is satisfactory; in which the court considers that the law was intended to apply to companies and that, although it excludes ordinary vicarious liability, insistence on the primary rules of attribution would in practice defeat that intention. In such a case, the court must fashion a special rule of attribution for the particular substantive rule."