John MacDonald Lyon CB (born 12 April 1948) [1] was the British Parliamentary Commissioner for Standards from 1 January 2008 to 31 December 2012. [2]
In 2009, Lyon's workload was increased by the MPs expenses scandal, which generated considerable interest in parliamentary standards or rather the lack of them. In 2010, he became involved in investigating a "cash for influence" scandal. Despite working on such high-profile cases, Lyon himself maintained a low profile, something which attracted adverse comment.[ citation needed]
In 2012, Lyon stood for election to the Council of the National Trust but was not elected. [3]