The Lexington Police Chief is appointed under M.G.L. Chapter 41, section 97A colloquially referred to as the "weak chief" statute. In essence, the Chief of Police does not have the authority to hire, fire, promote or discipline (over 5-days suspension). This authority rests by law with the Town Manager (Select Board-Town Manager Act adopted by Lexington in 1967). The Town Manager is also responsible for approving police policies.
The Town Manager is in turn responsible to the Select Board. This provides civilian review of police activities that can be enhanced as needed at the discretion of the Town Manager and/or Select Board.