RFE/RL: Poroshenko fails to show for questioning at State Bureau of InvestigationsBy Radio Free Europe/Radio Liberty. Published June 30, 2020. Updated June 30 at 7:33 pm Former President Petro Poroshenko greets his supporters as he arrived at a court hearing on June 18, 2020. Photo by Kostyantyn ChernichkinFormer Ukrainian President Petro Poroshenko has failed to show at the State Bureau of Investigations (DBR) for questioning.Read more here.