In addition to representing the electorate of the Central Region of Scotland within the Scottish Parliament until 2016, John was the Deputy Convenor of the Local Government and Regeneration Commitee and also sat on the Public Petitions Commitee.
John also sat on the following Cross Party Groups:
Cross-Party Group in the Scottish Parliament on Chronic Pain
Cross-Party Group in the Scottish Parliament on Credit Unions (Convener)
Cross-Party Group in the Scottish Parliament on Mental Health
Cross-Party Group in the Scottish Parliament on Nuclear Disarmament