Question to the Ministry of Justice:
To ask the Secretary of State for Justice, how many UK citizens have been tried in England and Wales for the (a) murder and (b) manslaughter of a UK citizen overseas.
The number of defendants prosecuted and convicted for murder and manslaughter is published up to December 2017 and available in the Outcomes by Offence data tool available here: https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/733981/outcomes-by-offence-tool-2017-update.xlsx
Detailed information on the nationality of the defendant/offender and victim may be held on court record but to be able to identify these cases we would have to access individual court records which would be of disproportionate cost.