There have been 7 direct killings of police officers in the course of duty since 2005.
The charity the Police Roll of Honour Trust lists those killed.
- 2007 - PC Gary Toms from the Met Police died after suffering serious head injuries while investigating a robbery.
- 2006 - PC Joe Carroll died following a crash on the A69 after a prisoner tried to escape from his car.
- 2005 - PC Sharon Beshenivsky was shot dead during a bungled robbery in Bradford.
The Police Federation hopes the Government will to "listen to and acknowledge" issues affecting its members at this year's conference.
"We are reforming the police force to make sure it is equipped for the challenges of the future", says the Policing minister.