2/ Many of the Russian convicts who went to war in Ukraine were imprisoned in the Omsk region, where jails have a reputation for extreme brutality, even by Russian standards. The independent Russian media project 'Okno' ('Window') has been speaking with former inmates.
3/ One prisoner, Andrei, was held for a time in a pre-trial detention centre in Omsk while serving a 14-year sentence for drug offences. The facility, known as SIZO-3, was closed in 2014 after a campaign by human rights activists exposed a litany of brutal treatment. He recalls: