Major crime fell dramatically in states which have legalized the carrying of concealed handguns, according to a comprehensive new study at the University of Chicago.

For the first time, researchers analyzed crime statistics for all 3,054 counties in the United Sates between 1977 and 1992, according to one of the authors of the unpublished study, Professor John Lott. After adjusting for a general fall in crime rates, the study found that:

According to the study, the fall in crime did not result from an increased use of guns, but from potential criminals avoiding confrontations. In fact, criminals apparently shifted to lower-risk offenses, since property crimes increased in those states. Other findings included: In addition, the researchers found no evidence of an increase in accidental killings or suicides in states with concealed carry laws. Source