 From 1935, he was 
director of the Museum of the Revolution of the USSR.Hanecki was arrested on 18 July 1937, along with his wife, Giza, and son, Stanislav.Police who raided his apartment (in the "House on the Embankment", 2, Serafimovicha Street, apartment 10) found a wealth of banned literature, written by communists who had since fallen foul of the Stalin regime, but no money, despite the vast sums that Hanecki had handled on behalf of the regime.