Dr Jane Martin looks at the role of the new metro mayors who promote the seven principles of public life within their combined authorities and take a lead in embedding them across local government as a whole

With so much political news over the last few months, the election of six new metro mayors in Cambridgeshire and Peterborough, Greater Manchester, Liverpool, Tees Valley, West of England and the West Midlands has not received as much attention as it might in less turbulent times.