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Friday, November 22, 2013

"The Truth About Mental Illness and Guns"

From Reason:

Even the nation's premier gun lobby believes keeping guns away from the mentally ill is a good idea. It's a sensible-sounding proposal, a logical precaution. But some forensic psychiatrists, whose jobs include the task of identifying potentially violent individuals, say that targeting the mentally ill isn't as simple as it sounds.


A recent Mayo Clinic study points out that mass shooters tend to meticulously plan their crimes weeks or months in advance, undermining the idea that the mentally ill simply "snap" and go on shooting rampages while also complicating the notion of effective gun control through gun registries, since a methodical planner has plenty of time to obtain weapons through illegal channels.


A more basic problem with a strategy that targets mentally ill people is that the vast majority of them are not violent. When you control for substance abuse, a factor that exacerbates violence in all populations, only about 4.3% of people with a "severe" mental illness are likely to commit any sort of violence, according to a University of Chicago study. The violence rate among those with a "non-severe" mental illness is about equal to that of the "normal" population.


"In the absence of a history of violence or any of the other risk factors, it is impossible to predict who will become violent," says Stephen K. Hoge, a forensic psychiatrist at Columbia University.

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