"One of the biggest problems recorded by Amnesty International in Ukraine is the problem that is not new to our country - the problem of impunity for serious human rights violations. It refers both to the war crimes, committed by both parties to the conflict in the east of our country, and the violations and abuses which took place during Euromaidan protests," Mazur said. According to her, little progress has been observed in the investigation into this case, and even less in bringing the perpetrators to justice. The adoption of the law on the establishment of the State Bureau of Investigation has become a long-awaited step towards the establishment of an effective mechanism for the investigation into crimes, the Executive Director of Amnesty International in Ukraine noted.