A person who, without having been designated or authorised for the purpose by the Agency or by the NRBW, purports to be entitled to enter any premises or vessel in exercise of a power exercisable in pursuance of any such designation or authorisation shall be guilty of an offence and liable—.
on summary conviction, to a fine not exceeding the statutory maximum;
on conviction on indictment, to a fine or to imprisonment for a term not exceeding two years, or to both.
For the purposes of this section it shall be immaterial, where a person purports to be entitled to enter any premises or vessel, that the power which that person purports to be entitled to exercise does not exist, or would not be exercisable, even if that person had been designated or authorised by the Agency or by the NRBW.