| Date | Subject/Role | Witnesses |
| 23 July 2010 |
International Policing portfolio lead, Association of Chief Police Officers for England, Wales & Northern Ireland, 2001 to 2008 |
Paul Kernaghan CBE QPM |
| 21 July 2010 |
Director of Law and Order and Senior Police Adviser to the Coalition Provisional Authority, 2003 to 2004 |
Stephen White OBE |
| Senior Police Adviser, Basra, 2005 to 2006 |
Colin Smith QPM |
| Deputy Chief of Defence Staff (Personnel), 2002 to 2005 |
Lt Gen Anthony Palmer CB CBE |
| Adjutant General, 2003 to 2005 |
Lt Gen Sir Alistair Irwin KCB CBE |
| Director Europe, Middle East and Americas, Department for International Development, 2001 to 2004 |
Carolyn Miller |
| 20 July 2010 |
Deputy Director General, Security Service until 2002
Director General, Security Service, 2002 to 2007 |
Baroness Manningham-Buller DCB |
| General Officer Commanding Multi National Division (South East), 2008 to 2009 |
Maj Gen Andy Salmon CMG OBE |
| Surgeon General, 2006 to 2009 |
Lt Gen Louis Lillywhite CB MBE QHS |
| 19 July 2010 |
Deputy Chief of Defence Staff (Personnel), 2007 to present |
Vice Admiral Peter Wilkinson CB CVO |
| Deputy Adjutant General, 2005 to 2008 |
Lt Gen Mark Mans CBE |
| Deputy Chief of Defence Staff (Personnel), 2005 to 2007 |
Air Marshal David Pocock CB CVO |