District of Columbia v. Heller, 554 U.S. 570 (2008), is a landmark decision of the Supreme Court of the United States. It ruled that the Second Amendment to the U.S. Constitution protects an individual's right to keep and bear arms—unconnected with service in a militia—for traditionally lawful purposes such as self-defense within the home, and that the District of Columbia's handgun ban and requirement that lawfully owned rifles and shotguns be kept "unloaded and disassembled or bound by a trigger lock" violated this guarantee. It also stated that the right to bear arms is not unlimited and that certain restrictions on guns and gun ownership were permissible. It was the first Supreme Court case to decide whether the Second Amendment protects an individual right to keep and bear arms for self-defense or whether the right was only intended for state militias.