Margaret joined IOM's Board as Governor in 2010, and has been Chair since 2015. She has wide experience of roles promoting the public and consumer interest. From 2007 to 2015 she served as Chair of NHS Health Scotland, Scotland's national agency for tackling health inequalities. She was previously Legal Advisory Officer to the Scottish Consumer Council, a Consultant with the Consumers' Association and a member of the Scottish Consumer Council.
Margaret was a member of the Health and Safety Commission from 1998 to 2007, chairing the Commission's Rail Industry Advisory Committee which included representatives of all parts of the rail industry and which advised the Commission on rail safety policy. She was also a member of the Committee on Radioiactive Waste Management from 2007 to 2013.