In this Act, except as otherwise expressly provided or unless the context otherwise requires—

• “the Act of 1990” means the [1990 c. vii.] London Local Authorities Act 1990;

• “authorised officer” means an officer of a borough council authorised by the council in writing to act in relation to the relevant provision of this Act;

• “borough council” means London borough council but does not include the Common Council of the City of London; and “borough” shall be construed accordingly.