Yeltsin decreed on 12 October that both houses of parliament would be elected in December. On 15 October, he ordered that a popular referendum be held in December on a new constitution. Rutskoy and Khasbulatov were charged on 15 October with "organizing mass disorders" and imprisoned. On 23 February 1994, the State Duma amnestied all individuals involved in the events of September–October 1993. They were later released in 1994 when Yeltsin's position was sufficiently secure. In early 1995, the criminal proceedings were discontinued and were eventually placed into the archives.