Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Russian Court Ups Prison Sentence for Soviet Gulag Researcher Charles Maynes MOSCOW - A Russian court abruptly increased the sentence of a history researcher from three-and-a-half to 13 years in prison -- a move his supporters say is the latest in state retaliation over research into Stalinist-era atrocities that today's Russian authorities would rather forget. Yuri Dmitriyev, 64, was convicted of "violent acts of a sexual nature" and sentenced to the initial term last July, on charges he touched his underage foster daughter inappropriately. At the time, the verdict appeared to cap a winding three-year court proceeding that saw Dmitriyev held in detention throughout -- in effect, giving him a partial victory. Despite the sentence, the historian was set to go free this November. Yet a closed appeal hearing on Tuesday suddenly overruled earlier sentencing guidelines, with the court ruling Dmitriyev should serve out an additional 10 years in a maximum security prison. Dmitriyev has always denied the sex abuse charges and says they were motivated by shifting state attitudes toward his discovery of the remains of thousands of prisoners killed during the Great Terror period under Soviet Union leader Joseph Stalin in the 1930s. Dmitriyev's lawyer was unable to attend the hearing due to health issues and a court-appointed lawyer was given three days to acquaint himself with the sprawling case instead. In a letter to friends ahead of the hearing, Dmitriyev said he told the court he refused the substitute defense lawyer. Memorial, the human rights group with which Dmitriyev was affiliated, denounced the harsher sentence as "illegal, unjust, and politically motivated." "Today's sentencing -- is the revenge of a system that came after the Soviets and wants again to betray the silenced names" unearthed by Dmitriyev, said the group. The U.S. embassy in Moscow also condemned the court's ruling. "The Karelian Supreme Court's decision to prolong historian Yuri Dmitriyev's already unjust sentence by an outrageous 10 additional years is another step backwards for #human rights and historical truths in #Russia," spokeswoman Rebecca Ross said on Twitter. The Karelian Supreme Court's decision to prolong historian Yuri Dmitriyev's already unjust sentence by an outrageous 10 additional years is another step backwards for [1]#humanrights and historical truths in [2]#Russia. -- Rebecca Ross (@USEmbRuPress) [3]September 29, 2020 On Wednesday, Kremlin spokesman Dmitry Peskov said the Kremlin traditionally did not comment on court decisions but would "more attentively become acquainted" with the case. Troubling discovery The origins of the case date to 1997, when Dmitriyev and two colleagues discovered a mass grave of some 7,000 remains in Sandarmokh, a remote wooded area in northwest Russia. They had uncovered the remains of Soviet political prisoners executed by Stalin's secret police at the height of his repression of opponents, both real and perceived, from 1937-38. "We were searching for those prisoner remains for nine years," says the head of Memorial in Saint Petersburg, Irina Flige, in an interview with VOA. References 1. https://twitter.com/hashtag/humanrights?src=hash&ref_src=twsrc%5Etfw 2. https://twitter.com/hashtag/Russia?src=hash&ref_src=twsrc%5Etfw 3. https://twitter.com/USEmbRuPress/status/1310991683241357312?ref_src=twsrc%5Etfw .