I've read entire papers on the subject of gun laws, especially pertaining to the US, UK, and Australia. It is my opinion that gun laws, like most restrictive laws, are ineffective and actually harmful to the GP because government doesn't work. some food for thought from wikipedia:
The National Center for Policy Analysis, a conservative think tank, reported the following statistics:
* New Jersey adopted what sponsors described as "the most stringent gun law" in the nation in 1966; two years later, the murder rate was up 46 percent and the reported robbery rate had nearly doubled.
* In 1968, Hawaii imposed a series of increasingly harsh measures and its murder rate, then a low 2.4 per 100,000 per year, tripled to 7.2 by 1977.
* In 1976, Washington, D.C., enacted one of the most restrictive gun control laws in the nation. Since then, the city's murder rate has risen 134 percent while the national murder rate has dropped 2 %.
* Over 50% of American households own guns, despite government statistics showing the number is approximately 35%, because guns not listed on any government roll were not counted during the gathering of data. [9]
* Evanston, Ill., a Chicago suburb of 75,000 residents, became the largest town to ban handgun ownership in September 1982 but experienced no decline in violent crime.
* Among the 15 states with the highest homicide rates, 10 have restrictive or very restrictive gun laws.
* 20 percent of U.S. homicides occur in four cities with just 6 percent of the population - New York, Chicago, Detroit and Washington, D.C. - and each has a virtual prohibition on private handguns.[8]
* UK banned private ownership of all handguns in 1997. Since 1998 the number of people injured by firearms in England and Wales has more than doubled, despite massive increase in number of police personnel.[9]
* Violent crime accelerated in Jamaica after handguns were banned.