The District of Columbia generally prohibits the possession of handguns. . . . District of Columbia law also requires residents to keep their lawfully owned firearms, such as registered long guns, “unloaded and dissembled or bound by a trigger lock or similar device” unless they are located in a place of business or are being used for lawful recreational activities. . . .
The Second Amendment provides: “A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed.” In interpreting this text, we are guided by the principle that “[t]he Constitution was written to be understood by the voters; its words and phrases were used in their normal and ordinary as distinguished from technical meaning.” . . . The two sides in this case have set out very different
interpretations of the Amendment. Petitioners and today’s dissenting Justices believe that it protects only the right to possess and carry a firearm in connection with militia service. Respondent argues that it protects an individual right to possess a firearm unconnected with service in a militia, and to use that arm for traditionally lawful purposes, such as self-defense within the home. The Second Amendment is naturally divided into two parts: its prefatory clause and its operative
clause. The former does not limit the latter grammatically, but rather announces a purpose. . . . [A]part from [a] clarifying function, a prefatory clause does not limit or expand the scope of the operative clause. . . . The first salient feature of the operative clause is that it codifies a “right of the people.” . . . [This] unambiguously refer[s] to individual rights, not “collective” rights, or rights that may be exercised only through participation
in some corporate body. . . . This contrasts markedly with the phrase “the militia” in the prefatory clause. As we will describe below, the “militia” in colonial America consisted of a subset of “the people”—those who were male, able bodied, and within a certain age range. . . . The term [“arms”] was applied, then as now, to weapons that were not specifically designed for military use and were not employed in a military capacity. . . . [T]he
most natural reading of “keep Arms” in the Second Amendment is to “have weapons.” . . . William Blackstone, for example, wrote that Catholics convicted of not attending service in the Church of England suffered certain penalties, one of which was that they were not permitted to “keep arms in their houses.” . . . In numerous instances, “bear arms” was unambiguously used to refer to the carrying of weapons outside of an organized militia. The most prominent examples are
those most relevant to the Second Amendment: nine state constitutional provisions written in the 18th century or the first two decades of the 19th, which enshrined a right of citizens to “bear arms in defense of themselves and the state” or “bear arms in defense of himself and the state.” It is clear from those formulations that “bear arms” did not refer only to carrying a weapon in an organized military unit. . . .
This meaning is strongly confirmed by the historical background of the Second Amendment. . . . Between the Restoration and the Glorious Revolution, the Stuart Kings Charles II and James II succeeded in using select militias loyal to them to suppress political dissidents, in part by disarming their opponents. Under the auspices of the 1671 Game Act, for example, the Catholic Charles II had ordered general disarmaments of regions home to his Protestant enemies. These experiences caused Englishmen to be extremely wary of concentrated military forces run by the state and to be jealous of their arms. They accordingly obtained an assurance from William and Mary, in the Declaration of Rights (which was codified as the English Bill of Rights), that Protestants would never be disarmed: “That the Subjects which are Protestants, may have Arms for their Defence suitable to their Conditions, and as allowed by Law.” 1 W. & M., ch. 2, § 7, in 3 Eng. Stat. at Large 441. This right has long been understood to be the predecessor to our Second Amendment . . . .
And, of course, what the Stuarts had tried to do to their political enemies, George III had tried to do to the colonists. . . .
We reach the question, then: Does the preface fit with an operative clause that creates an individual right to keep and bear arms? It fits perfectly, once one knows the history that the founding generation knew and that we have described above. That history showed that the way tyrants had eliminated a militia consisting of all the able-bodied men was not by banning the militia but simply by taking away the people’s arms, enabling a select militia or standing army to suppress political opponents. . . .
Like most rights, the right secured by the Second Amendment is not unlimited. . . . Although we do not undertake an exhaustive historical analysis today of the full scope of the Second Amendment, nothing in our opinion should be taken to cast doubt on longstanding prohibitions on the possession of firearms by felons and the mentally ill, or laws forbidding the carrying of firearms in sensitive places such as schools and government buildings, or laws imposing conditions and qualifications on the commercial sale of arms. . . .
The District’s ban on handgun possession in the home violates the Second Amendment, as does its prohibition against rendering any lawful firearm in the home operable for the purpose of immediate self-defense. . . .
. . . . The Second Amendment was adopted to protect the right of the people of each of the several States to maintain a well-regulated militia. It was a response to concerns raised during the ratification of the Constitution that the power of Congress to disarm the state militias and create a national standing army posed an intolerable
threat to the sovereignty of the several States. Neither the text of the Amendment nor the arguments advanced by its proponents evidenced the slightest interest in limiting any legislature’s authority to regulate private civilian uses of firearms. Specifically, there is no indication that the Framers of the Amendment intended to enshrine the common-law right of self-defense in the Constitution. . . .
The parallels between the Second Amendment and . . . state declarations, and the Second Amendment’s omission of any statement of purpose related to the right to use firearms for hunting or personal self-defense, is especially striking in light of the fact that the Declarations of Rights of Pennsylvania and Vermont did expressly protect such civilian uses at the time. . . .
Had the Framers wished to expand the meaning of the phrase “bear arms” to encompass civilian possession and use, they could have done so by the addition of phrases such as “for the defense of themselves,” as was done in the Pennsylvania and Vermont Declarations of Rights. . . .
The Amendment’s use of the term “keep” in no way contradicts the military meaning conveyed by the phrase “bear arms” and the Amendment’s preamble. To the contrary, a number of state militia laws in effect at the time of the Second Amendment’s drafting used the term “keep” to describe the requirement that militia members store their arms at their homes, ready to be used for service when necessary. . . .
The history of the adoption of the Amendment thus describes an overriding concern about the potential threat to state sovereignty that a federal standing army would pose, and a desire to protect the States’ militias as the means by which to guard against that danger. But state militias could not effectively check the prospect of a federal standing army so long as Congress retained the power to disarm them, and so a guarantee against such disarmament was needed. . . .
Until today, it has been understood that legislatures may regulate the civilian use and misuse of firearms so long as they do not interfere with the preservation of a well-regulated militia. The Court’s announcement of a new constitutional right to own and use firearms for private purposes upsets that settled understanding, but leaves for future cases the formidable task of defining the scope of permissible regulations. . . .
[T]he protection the Amendment provides is not absolute. The Amendment permits government to regulate the interests that it serves. . . . [T]he District’s law is consistent with the Second Amendment even if that Amendment is interpreted as protecting a wholly separate interest in individual self-defense. That is so because the District’s
regulation, which focuses upon the presence of handguns in high-crime urban areas, represents a permissible legislative response to a serious, indeed life-threatening, problem. . . .
The law is tailored to the urban crime problem in that it is local in scope and thus affects only a geographic area both limited in size and entirely urban; the law concerns handguns, which are specially linked to urban gun deaths and injuries, and which are the overwhelmingly favorite weapon of armed criminals; and at the same time, the law imposes a burden upon gun owners that seems proportionately no greater than restrictions in existence at the time the Second Amendment was adopted. . . .
[C]olonial history itself offers important examples of the kinds of gun regulation that citizens would then have thought compatible with the “right to keep and bear arms,” whether embodied in Federal or State Constitutions, or the background common law. And those examples include substantial regulation of firearms in urban areas, including regulations that imposed obstacles to the use of firearms for the protection of the home.
Boston, Philadelphia, and New York City, the three largest cities in America during that period, all restricted the firing of guns within city limits to at least some degree. . . . Furthermore, several towns and cities (including Philadelphia, New York, and Boston) regulated, for fire-safety reasons, the storage of gunpowder, a necessary component of an operational firearm. Boston’s law in particular impacted the use of firearms in the home very much as the District’s law does today. Boston’s gunpowder law imposed a £10 fine upon “any Person” who “shall take into any Dwelling–House, Stable, Barn, Out-house, Ware-house, Store, Shop, or other Building, within the Town of Boston, any . . . Fire–Arm, loaded with, or having Gun–Powder.” Even assuming, as the majority does, that this law included an implicit self-defense exception, it would nevertheless have prevented a homeowner from keeping in his home a gun that he could immediately pick up and use against an intruder. . . .
The New York City law, which required that gunpowder in the home be stored in certain sorts of containers, and laws in certain Pennsylvania towns, which required that gunpowder be stored on the highest story of the home, could well have presented similar obstacles to in-home use of firearms. . . .
The fact that important interests lie on both sides of the constitutional equation suggests that review of gun-control regulation is not a context in which a court should effectively presume either constitutionality (as in rational-basis review) or unconstitutionality (as in strict scrutiny). Rather, “where a law significantly implicates competing constitutionally protected interests in complex ways,” the Court generally asks whether the statute burdens a protected interest in a way or to an extent that is out of proportion to the statute’s salutary effects upon other important governmental interests. . . .