no hope. What you'd want to punish them for, in some specific places are considered as the skills in high demand. At the end they will run, say for example, to Russia, like this one for example from the Ukraine security forces:

https://www.rferl.org/a/ukraine-berkut-commander-gets-second...

" the former Berkut riot-police commander in connection with the lethal suppression of the 2013-14 Euromaidan protests. Yet in Moscow, Kusyuk is now a colonel in the Russian Interior Ministry's OMON force and was seen on August 3 overseeing the arrests of demonstrators calling for fair municipal elections in the capital."