| Period | Position | Office/Committee |
| 13/02/2013 - 08/04/2013 | Assembly Party Group Secretary | All Party Group on Country Sports |
| 13/02/2013 - 08/04/2013 | Assembly Party Group Member | All Party Group on Country Sports |
| 10/09/2012 - 08/04/2013 | Committee Member | Committee on Standards and Privileges |
| 07/11/2011 - 08/04/2013 | Assembly Party Group Member | All Party Group on European Environmental Regulations, Directives and Decisions |
| 13/06/2011 - 08/04/2013 | Assembly Party Group Member | All Party Group on Diabetes |
| 23/05/2011 - 08/04/2013 | Committee Member | Committee for the Environment |
| 23/05/2011 - 10/09/2012 | Committee Member | Committee for the Office of the First Minister and deputy First Minister |
| 12/05/2011 - 12/05/2011 | Deputy Speaker | Northern Ireland Assembly |
| 12/05/2011 - 08/04/2013 | Principal Deputy Speaker | Northern Ireland Assembly |
| 16/09/2008 - 24/03/2011 | Assembly Party Group Member | All Party Group on Diabetes |
| 29/04/2008 - 24/03/2011 | Assembly Party Group Member | All Party Group on Disability |
| 10/09/2007 - 20/01/2008 | Committee Member | Committee for Enterprise, Trade and Investment |
| 09/05/2007 - 25/03/2011 | Committee Member | Committee for Agriculture and Rural Development |
| 09/05/2007 - 25/03/2011 | Committee Member | Committee for the Office of the First Minister and deputy First Minister |
| 08/05/2007 - 11/05/2011 | Deputy Speaker | Northern Ireland Assembly |
| 22/11/2006 - 30/01/2007 | Joint Chairpersons Programme for Government Committee | Committee on the Programme for Government |
| 22/11/2006 - 30/01/2007 | Joint Committee Chair | Committee on the Programme for Government |
| 11/05/2006 - 30/01/2007 | Deputy Speaker | Northern Ireland Assembly |
| 09/09/2002 - 28/04/2003 | Committee Member | Draft Firearms (Northern Ireland) Order 2002 |
| 04/02/2002 - 28/04/2003 | Committee Member | Committee for the Environment |
| 30/11/1999 - 28/04/2003 | Committee Chair | Committee for Finance and Personnel |
| 30/11/1999 - 04/02/2002 | Committee Member | Committee for Agriculture and Rural Development |
| 29/06/1998 - 01/12/1999 | Committee Member | Committee to Advise The Presiding Officer |