Dr. Paul Appelbaum's Neuron Essay in Time

The problem is that a genetic predisposition for, say, violence, is not the same as a diagnosed mental disorder. “The ‘my genes made me do it’ argument is problematic because there is no evidence that genes make a person behave in a certain way that is beyond their capacity to control or recognize is wrong,” says Appelbaum
Read more: http://time.com/2822174/genetics-in-court-is-a-very-messy-business/