In section 174 of that Act (impersonation of persons exercising powers of entry) in subsection (1) (which creates a summary offence punishable by a fine not exceeding level 4) for the words from “liable, on summary conviction,” onwards there shall be substituted the words“liable—

(a)

on summary conviction, to a fine not exceeding the statutory maximum;

(b)

on conviction on indictment, to a fine or to imprisonment for a term not exceeding two years, or to both.”