As the study points out - one issue is some studies only count defensive use if the perp is shot and killed. Just showing a gun like in clackamas mall was enough to end the event. Many if not most uses go unreported.
forbes.com
A widely-known study conducted by Gary Kleck and Marc Gertz in the 1990s found that there were somewhere between 830,000 and 2.45 million U.S. defensive gun uses annually. A National Crime Victimization Study (NCVS) which asked victims if they had used a gun in self-defense found that about 108,000 each year had done so. A big problem with the NCVS line of survey reasoning, however, is that it only includes those uses where a citizen kills a criminal, not when one is only wounded, is held by the intended victim until police arrive, or when brandishing a gun caused a criminal to flee.
For these reasons, the Cato researchers investigated published news reports which much more often reveal how Americans use guns in self-defense. The data set is derived from a collection of nearly 5,000 randomly selected incidents published between October 2003 and November 2011. Still, the authors also recognize limitations with this approach, since many defensive incidents are never reported by victims, or when they are, never get published. In fact, the overwhelming majority of the successful self-defense outcomes are those where the defendants’ guns are presented but never fired. |