War with Russia

"Putin Tribunal" to Indict about 20 Russians: Interview with Ukraine's Envoye for War Trials
Anton Korynevych: "To reach a verdict against Putin while he is sitting in a bunker, we need a trial in absentia. This is real."
Dirty Russian Money in Favour of Ukraine: Plans on How to Do It in Europe
How can such assets be searched for? What problems in this matter already exist in the European legislation, which of them can be solved, and which are still pending?