(1)Subject to the provisions of this section proceedings for an offence under Part II or III of this Act shall not, in England or Wales, be instituted except by or on behalf of the Director of Public Prosecutions or by a person authorised in that behalf by the traffic commissioners, a chief officer of police, or the council of a county or district.
(2)Subsection (1) above shall not apply to proceedings for the breach of regulations having effect by virtue of section 25 or 26 of this Act.
(3)Subsection (1) above shall not prevent the institution by or on behalf of the Secretary of State of proceedings for an offence under section 27 of this Act.