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In page Nikolai Bukharin:

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While Anastas Mikoyan and Vyacheslav Molotov later claimed that Bukharin was never tortured and his letters from prison do not give the suggestion that he was tortured, it is also known that his interrogators were given the order: "beating permitted".[citation needed] Bukharin held out for three months, but threats to his young wife and infant son, combined with "methods of physical influence" wore him down.[5] But when he read his confession amended and corrected personally by Stalin, he withdrew his whole confession. The examination started all over again, with a double team of interrogators.[6][7]