The concept of free will and forensic psychiatry

This text examines how conceptions of free will impact on legal systems and forensic psychiatry: free will is generally regarded as a prerequisite for responsibility, criminal responsibility included, while forensic psychiatry to a large extent deals with the limits imposed on responsibility by mental disorder. First we discuss the question of whether there is and has been such an impact. The answer is yes: different conceptions of free will have inspired different systems of law and forensic psychiatry, as becomes clear when looking at the accountability doctrine as compared to the unique Swedish system rejecting this doctrine. However, there is no necessary connection between doctrines of responsibility and conceptions of free will, since the former primarily says something about when someone should be held responsible and the latter says something about when someone really is free in a sense relevant to responsibility. This leads to the second question: should conceptions of free will have an impact on law and forensic psychiatry? We argue: that they should not, given the implausibility the normative theory retributivism, which posits a direct connection between free will and punishment. More importantly, questions of free will are complicated and unresolved philosophical issues that are better left out of the everyday decision-making incumbent on the legal and psychiatric systems. Instead, we recommend using an empirically useful and gradual conception of autonomy to facilitate the determination of legal responsibility. This autonomy conception, being neutral on the question of free will, eliminates the need to take a stand on it.