In the foregoing provisions of this Part and this section—

• “chief officer of police” has the meaning given by section 101(1) of the M1Police Act 1996;

• “local authority” means—

  1. a

     in relation to England, a county council, a district council whose district does not form part of an area that has a county council, a London borough council or the Common Council of the City of London;

  2. b

     in relation to Wales, a county council or a county borough council;

• “police authority” has the meaning given by section 101(1) of the M2Police Act 1996;

• “youth justice system” means the system of criminal justice in so far as it relates to children and young persons.

For the purposes of those provisions, the Isles of Scilly form part of the county of Cornwall and the Inner Temple and the Middle Temple form part of the City of London.

In carrying out any of their duties under those provisions, a local authority, a police authority, a probation committee or a health authority shall act in accordance with any guidance given by the Secretary of State.