NPR

Science Provides Few Facts On Effects Of Gun Policies, Report Finds

A review by the RAND Corporation finds little evidence as to whether many popular gun control policies do or don't affect gun violence. In many cases, solid studies just haven't been done.
A report from the RAND Corporation confirms there is very little scientific evidence for or against many gun policies. RAND hopes to lend researchers a hand with its new state-by-state database of gun laws.

An analysis published Friday confirms the state of American gun policy science is not good, overall.

The nonprofit RAND Corporation analyzed thousands of studies and found only 63 that establish a causal relationship between specific gun policies and outcomes such as reductions in homicide and suicide, leaving lawmakers without clear facts about one of the most divisive issues in American politics.

The is notable for its depth, if not for its overall finding

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