 Complete the following phrase:  After 1945, even German police officers were initially not allowed to carry firearms. Private ownership of firearms was not allowed until 1956. The legal status returned essentially to that of the Law on Firearms and Ammunition of 1928. The law was thoroughly revised in 1972, when the new restrictive Federal Weapons Act Bundeswaffengesetz became effective, partly as a reaction to the terror of the Red Army Faction. It was developed in the Federal Weapons Act of 2002 and by amendments in 2008 and 2009. These laws were the result of a chain of school shootings in Erfurt, Emsdetten and 