Relatives of a British man sentenced to death by a court in the pro-Russian, self-proclaimed Donetsk People's Republic (DPR) have said they are "devastated" and that he "should be accorded all the rights of a prisoner of war" according to the Geneva Conventions.
source https://www.cnn.com/2022/06/11/europe/shaun-pinner-death-sentence-dpr-russia-ukraine-intl/index.html