The Roberti-Roos Assault Weapons Control Act of 1989, or AWCA, restricted semi-automatic firearms that it classified as assault weapons: over 50 specific brands and models of rifles, pistols, and shotguns to those who were issued a Dangerous Weapons Permit by the California Department of Justice. Since the Department of Justice generally does not give Dangerous Weapons Permits to ordinary citizens, the Roberti-Roos Act amounts to an effective ban on defined assault weapons in California. It also banned magazines that it classified as large capacity (those able to hold more than 10 rounds of ammunition). Guns and magazines legally owned at the time the law was passed were grandfathered in if registered with the California Department of Justice. 1999 In March 1999, State Senator Don Perata introduced Senate Bill 23 (SB 23). The bill had three provisions: to make illegal the manufacture, importation, sale or offer, or to give or lend any large-capacity magazine as defined as having the capacity to accept more than ten rounds; the addition of a "generic" definition list to the existing Roberti-Roos legislation; and the exemption to allow on and off duty and retired peace officers the use of assault weapons. They are defined in Penal Code §12276.1 and §30515. The bill was passed and went into effect on January 1, 2000. Shortly after this was passed a loophole was discovered. Since the law was written by make and model or the number of features. The loophole was that a detachable magazine was allowed, if it required a tool to remove. This led to the creation of the Bullet Button. The Bullet Button is a device that replaced the standard magazine catch on the rifle and prevented the magazine from being released without a small pointed device inserted into the screw hole. Various designs and other versions of Bullet Button type devices were released and used by millions of Californians. 2016 In December 2015 Syed Rizwan Farook and Tashfeen Malik borrowed a rifle and removed the Bullet Button, making it an illegal configuration. Then went to the San Bernardino Inland Regional Center where they murdered 14 people and injured 22 others. This led to a second, stricter version of the original California assault weapons ban SB880, AKA the Bullet Button Ban. This made previously legal configurations of semi-automatic sporting rifles illegal. The owners were given a choice to register the guns as assault weapons with the