ACPO reviewed Operation Kratos in March 2006 and declared it still "fit for purpose". The Met made changes to the command structure of Operation Kratos after the shooting. In the future, authorisation of a critical shot would be communicated by a clear English phrase rather than code-words. Authorisation would still come from specially trained officers of Commander rank or higher, but these would now be called Extreme Threat Tactical Commanders rather than DSOs. Despite the high rank of this officer, they would not command the whole operation, but would monitor the operation and take over tactical command when a threat of suicide bombing became apparent. The number of such officers in the Met would be reduced to 12, and they would receive more intensive training. The term Operation Kratos was dropped at the beginning of 2008.