Medvedev made reforming Russia's law enforcement one of his top agendas, the reason for which was a shooting started by a police officer in April 2009 in one of Moscow's supermarkets. Medvedev initiated the reform at the end of 2009, with a presidential decree issued on 24 December ordering the government to start planning the reform. In early August 2010 a draft law was posted on the Internet at the address http://www.zakonoproekt2010.ru for public discussion. The website was popular, with more than 2,000 comments posted within 24 hours of its opening. Based on citizen feedback, several modifications to the draft were made. On 27 October 2010, President Medvedev submitted the draft to the lower house of the Russian parliament, the State Duma. The State Duma voted to approve the bill on 28 January 2011, and the upper house, the Federation Council followed suit on 2 February 2011. On 7 February 2011, President Medvedev signed the bill into law. The changes came into effect on 1 March 2011.