Section 3 of the Prosecution of Offences Act 1985 (c.23) sets out the functions of the Director of Public Prosecutions. These include taking over the conduct of all criminal proceedings instituted on behalf of a police force, unless the proceedings are specified in an Order made by the Attorney General under section 3(3) of that Act.
Link: The Prosecution of Offences Act 1985 (Specified Proceedings) (Amendment) Order 2018
Source: Legislation .gov.uk
