Membership of the Committee was agreed by both Houses in February 2006. The membership of the Joint Committee in the previous Parliament was as follows:
| Member | Constituency | Party |
|---|
| Lord Carswell (Chairman) | | Cross Bench |
| John Bercow | Buckingham | Conservative |
| Mr Brian Binley | Northampton South | Conservative |
| Mr Russell Brown | Dumfries and Galloway | Labour |
| Mr Alistair Carmichael | Orkney and Shetland | Liberal Democrats |
| Mr William Cash | Stone | Conservative |
| Mr Martin Caton | Gower | Labour |
| Colin Challen | Morley and Rothwell | Labour |
| Jim Dobbin | Heywood and Middleton | Labour Co-op |
| Mr Stephen Dorrell | Charnwood | Conservative |
| Paul Farrelly | Newcastle-under-Lyme | Labour |
| Mr John MacDougall | Glenrothes | Labour |
| Lynda Waltho | Stourbridge | Labour |
| Lord Acton | | Labour |
| Lord Campbell of Alloway | | Conservative |
| Lord Christopher | | Labour |
| Viscount Colville of Culross | | Cross Bench |
| Earl of Dundee | | Conservative |
| Lord Eames | | Cross Bench |
| Baroness Fookes | | Conservative |
| Lord Janner of Braunstone | | Labour |
| Baroness Mallalieu | | Labour |
| Lord Methuen | | Liberal Democrats |
| Lord Razzall | | Liberal Democrats |