A chief officer of police of a police force in England and Wales may authorise a person to exercise the chief officer's functions under this Chapter.

The Chief Constable of the British Transport Police Force may authorise a person to exercise the Chief Constable's functions under this Chapter.

The Director General of the Serious Organised Crime Agency may authorise a person to exercise the Director General's functions under this Chapter.

The Chief Constable of the Police Service of Northern Ireland may authorise a person to exercise the Chief Constable's functions under this Chapter.

The Director of Public Prosecutions may authorise a person to exercise the Director's functions under this Chapter.

The Director of Revenue and Customs Prosecutions may authorise a person to exercise the Director's functions under this Chapter.

The Director of Public Prosecutions for Northern Ireland may authorise a person to exercise the Director's functions under this Chapter.