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“In Genetic Basis for Crime: A New Look” New York Times (June 19, 2011) , Patricia Cohen tells us
Researchers estimate that at least 100 studies have shown that genes play a role in crimes. “Very good methodological advances have meant that a wide range of genetic work is being done,” said John H. Laub, the director of the justice institute, who won the Stockholm Prize in Criminology last week. He and others take pains to emphasize, however, that genes are ruled by the environment, which can either mute or aggravate violent impulses. Many people with the same genetic tendency for aggressiveness will never throw a punch, while others without it could be career criminals.
The subject still raises thorny ethical and policy questions.
In which case, these findings should – or should not – consign people to jail?
A rash of new research has focused on self-control as well as callousness and a lack of empathy, traits regularly implicated in the decision to commit a crime. Like other personality traits, these are believed to have environmental and genetic components, although the degree of heritability is debated.
The witness Gene may stand down. Case dismissed!