https://arstechnica.com/tech-policy/2022/07/tiktok-resists-calls-to-preserve-ukraine-content-for-war-crime-investigations/

TikTok is resisting calls to preserve and hand over access to its content for war crime investigations, as lawyers and activists warn that the Chinese-owned app is a major data challenge in prosecuting atrocities in Russia’s invasion of Ukraine.

The video app’s popularity with young Ukrainians and Russians posting footage of the war has made it a trove of digital intelligence that investigators are attempting to mine and archive as evidence of war crimes, crimes against humanity, and illegal acts of violence in Ukraine.