[1] Bodies of those servicemen dying overseas are repatriated to the UK via RAF Brize Norton leading to the responsibility for inquests being under the civilian jurisdiction of the Oxfordshire coroner.
He has been particularly critical of the actions of the UK Ministry of Defence and United States Department of Defense, particularly with regard to so-called friendly fire incidents.
In the case of the death of ITN reporter Terry Lloyd, killed by U.S. forces in southern Iraq in March 2003, Walker recorded a verdict of unlawful killing, the strongest possible judgement in an inquest, calling for the Attorney general and Director of Public Prosecutions to consider criminal charges against the U.S. servicemen involved.
The inquest into the death of British non-commissioned officer, Lance-Corporal of Horse Matty Hull, in a friendly fire incident in 2003 led to significant media interest over the refusal of the US government to release a classified cockpit video recording.
[4] The redactions were made under the Regulation of Investigatory Powers Act which covers information obtained from covert surveillance including telephone taps and bugs.