The Katyn Massacre is a collective term meaning the execution of nearly 22,000 Polish citizens held in various camps and prisons of the Soviet security police NKVD in April and May 1940. The Soviet Union denied for decades that the Poles were killed by NKVD servicemen.
"Polish citizens shot on Soviet territory have been denied rehabilitation based purely on the fact that the FSB archives do not keep criminal files against them. The legal obstacle to their rehabilitation is exactly this one," Khristoforov said.
The law stipulates that, for a victim of reprisals to be legally rehabilitated, their criminal file is supposed to be forwarded from an archive to a prosecutor’s office or to a court, he said.