Fiona Mactaggart has been the Labour Party MP for Slough since 1997. She served as a Parliamentary Under-Secretary in the Home Office from 2003 to 2006, and was Shadow Minister for Equalities from 2010 to 2011. She is also a former Chair of Liberty.
In the 2015 general election, Mactaggart was re-elected with a majority of 7,336. 
- Unlock Democracy
- New Politics Network
- TOAST, listed as parliamentary patron
- Obesity All-Party Parliamentary Group
- Tackling Terrorism All-Party Parliamentary Group, member
- United Kingdom Overseas Territories All-Party Parliamentary Group - Vice-chair
- Website: www.fionamactaggart.labour.co.uk
- Fiona Mactaggart, www.parliament.uk, accessed 17 November 2013.
- Sarah Priddy, PIL: Current Members Related to Other Current or Former Members - Commons Library Standard Note, 13 September 2013.
- ELECTION 2015: Labour's Fiona Mactaggart holds Slough seat with 7,336 majority Slough Express, 8 May 2015, accessed 18 May 2015
- Overseas territories APPG Register Feb 16, www.parliament.uk, accessed 18 February 2016