Subsections (1) to (3) of section 1 of the M1Local Authorities (Goods and Services) Act 1970 (supply of goods and services by local authorities) shall apply to a police authority established under section 3 F1and to the Metropolitan Police Authority as they apply to a local authority, except that in their application to a police authority the references in those subsections to a public body shall be read as references to any person.