I found an interesting statistical report of the background checks required before purchasing guns under the Brady Act.
A little background: in 1981, a mental patient attempted to assassinate President Reagan, shooting both the President and bodyguard James Brady nonfatally with a handgun. The Brady Handgun Violence Prevention Act, named after said bodyguard, was passed in 1993 and went into effect in 1994. It required a criminal background check to be conducted via the National Instant Criminal Background Check System (NICS) on anyone attempting to purchase a firearm before that purchase could take place.
This report [pdf] publicizes some statistics from the use of NICS in 2008 (the most recent year for which data is publicly available). Here are some highlights:
5,813,249 NICS background checks were run by licensed gun shops.
70,725 (1.2%) denials were referred to the ATF's Brady Operations Branch. These folks have to wait a day or two before they can, if cleared, proceed with the transaction.
78,906 NICS total denials were screened by Brady Operations (the 70,725 from above plus about 8,000 from law enforcement agencies directly).
73,333 (93%) of the denials were overturned. That is, the initial failure to pass the background check was due to some mistake, such as a typo in the application or a case of mistaken identity.66,745 (85%) of the denials were not referred for investigation nor overturned -- that is, insufficient evidence existed to suggest that they intended to possess a firearm illegally, so the purchase attempt was blocked but presumed to be an honest mistake.
9,689 (13%) of the denials were overturned, either exonerated by ATF investigation or successfully appealed by the customer.5,573 (7%) were referred to ATF field agencies for further investigation.
2,154 ATF field agency investigations resulted in unlawful possession rulings.
1,218 (57%) unlawful possession cases resulted in the retrieval of
1,225 firearms from unlawful owners.
147 cases were referred to the U.S. Attorney's Office for prosecution.
105 (71%) cases were prosecuted (in 42 cases, the prosecutor declined to prosecute).
43 cases resulted in guilty pleas or verdicts.
7 cases resulted in guilty pleas or verdicts to possession of a firearm by a convicted felon.
1 defendant was convicted on multiple [four] charges.
Supporters of the Brady Act will note that 1,225 unlawfully possessed firearms were removed from circulation, 43 defendants were convicted, and attempts to unlawfully purchase firearms from federally licensed gun shops are down 4% since the previous year.
Critics will note that
85% of prevented sales were innocent mistakes, 93% 13% of prevented firearm sales were legal firearm sales (eg, overturned denials), only 1 background check in 2,700 leads to concluding unlawful possession, only 1 in 135,000 results in a conviction, only 1 in 830,000 results in a firearm possession by a felon conviction, and no attempt is made to prevent felons from procuring firearms except from federally licensed gun shops. (There is theft and a black market, ya know.)
My take: the NICS program effectively ensures legal gun shops follow the law, and is in that sense a success. It does nothing to prevent violence or make people safer; in that sense, it is a failure.
In
related news, crime generally, and homicide and firearm assault especially, are way down in Washington, D.C., since the handgun ban was declared unconstitutional.
Edit: underlined italics denotes inserted text, while deleted strikeout denotes removed text. Thanks to Quantum_Wizard for catching my mistakes and setting me straight.