It says "a local authority shall appoint such officers as they think necessary for the proper discharge by the authority of such of their or another authority’s functions" But section 270 of the Local gov act 1972 also says "(3)Any reference in this Act to a proper officer and any reference which by virtue of this Act is to be construed as such a reference shall, in relation to any purpose and any local authority or other body or any area, be construed as a reference to an officer appointed for that purpose by that body or for that area, as the case may be"