But there are also the non-statutory so-called "Nolan principles" as set out by the Committee on Standards in Public Life following the sleaze scandals of the mid-90s.

BBC: UK

The independent inquiry concluded Mr Morrell, Mr Williams and deputy leader Councillor Jacqui Rayment fell below national guidelines of openness and honesty for public life - known as the Nolan principles.

BBC: Richard Williams

He said the Jury Team candidates had "legally committed themselves to our three guiding principles of democracy, accountability and transparency and to abiding by the seven Nolan Principles of Public Life".

BBC: Rantzen backs Jury Team project