The deportation proceedings against the former death squad member were put on hold earlier in 2021 after a federal judge ordered a review, citing arguments by the defence regarding health issues and potential civil rights violations.
An adjudicator ruled in October that the IRB has the jurisdiction to pursue the deportation of Oberlander, concluding that no abuse of process had occurred.
Additionally, Oberlander faces legal scrutiny in Russia, where investigators say he was complicit in the World War II massacre of 27,000 civilians, including orphaned children, in Russia's Rostov Region. Federal Security Service (FSB) files obtained by Sputnik revealed that Oberlander, a former interpreter for the Sonderkommando SS-10A death squad, played a role in the massacre.
Russia's Investigative Committee has sent a request to the Canadian authorities to provide legal materials related to the probe into Oberlander's role in the massacre.