The UK government and police chiefs are reviewing the process through which US military personnel accused of committing serious crimes on UK soil are avoiding the British justice system. The effort, involving multiple government departments, is examining why UK police forces, which have primary responsibility for investigating such cases, have been ceding jurisdiction to US military investigators. In all other cases, the British police have the first option on whether to launch an investigation into visiting US military personnel. Two police forces – Suffolk and Cambridgeshire – are conducting their own reviews of how they handle investigations involving US military personnel. More than 12,000 US military personnel are stationed in the UK, operating from at least 15 bases and facilities.