135 homicides, a 53% increase from 2012 but a 17% decrease from 2015. Many neighborhoods such as Columbia Heights and Logan Circle are becoming safer and vibrant. However, incidents of robberies and thefts have remained higher in these areas because of increased nightlife activity and greater numbers of affluent residents. Even still, citywide reports of both property and violent crimes have declined since their most recent highs in the mid-1990s. On June 26, 2008, the Supreme Court of the United States held in District of Columbia v. Heller that the city's 1976 handgun ban violated the right to keep and bear arms as protected under the Second Amendment. However, the ruling does not prohibit all forms of gun control; laws requiring firearm registration remain in place, as does the city's assault weapon ban. In addition to the district's own Metropolitan Police Department, many federal law enforcement agencies have jurisdiction in the city as well—most visibly the U.S. Park Police, founded in 1791. See also Index of Washington, D.C.–related articles Outline of Washington, D.C. List of people from Washington, D.C. Explanatory notes References External links Guide to Washington, D.C., materials from the Library of Congress Why is Washington, D.C. Called the District of Columbia? Capitals in North America Members of the Unrepresented Nations and Peoples Organization Planned capitals Planned cities in the United States Populated places established in 1790 Populated places on the Potomac River Mid-Atlantic states Southern United States Northeastern United States States and territories established in 1790 Political divisions of the United States Washington metropolitan area 1790 establishments in the United States Contiguous United States