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Psychology

University of Pennsylvania Carey Law School

Insanity

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Murder Mitigation In The Fifty-Two American Jurisdictions: A Case Study In Doctrinal Interrelation Analysis, Paul H. Robinson Apr 2014

Murder Mitigation In The Fifty-Two American Jurisdictions: A Case Study In Doctrinal Interrelation Analysis, Paul H. Robinson

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The essay surveys the law in the fifty-two American jurisdictions with regard to the three doctrines that commonly provide a mitigation or defense to murder liability: common law provocation and its modern counterpart, extreme mental or emotional disturbance; the so-called diminished capacity defense and its modern counterpart, mental illness negating an offense element; and the insanity defense. The essay then examines the patterns among the jurisdictions in the particular formulation they adopt for the three doctrines, and the combinations in which those formulations commonly appear in different jurisdictions. After this review, the essay steps back to see what kinds of …


The Effect Of Mental Illness Under U.S. Criminal Law, Paul H. Robinson Jan 2014

The Effect Of Mental Illness Under U.S. Criminal Law, Paul H. Robinson

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This paper reviews the various ways in which an offender's mental illness can have an effect on liability and offense grading under American criminal law. The 52 American jurisdictions have adopted a variety of different formulations of the insanity defense. A similar diversity of views is seen in the way in which different states deal with mental illness that negates an offense culpability requirement, a bare majority of which limit a defendant's ability to introduce mental illness for this purpose. Finally, the modern successor of the common law provocation mitigation allows, in its new breadth, certain forms of mental illness …


A System Of Excuses: How Criminal Law’S Excuse Defenses Do, And Don’T, Work Together To Exculpate Blameless (And Only Blameless) Offenders, Paul H. Robinson Jan 2009

A System Of Excuses: How Criminal Law’S Excuse Defenses Do, And Don’T, Work Together To Exculpate Blameless (And Only Blameless) Offenders, Paul H. Robinson

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Criminal law excuses are analyzed as a group of analogous doctrines working together to exculpate blameless offenders. The analysis reveals that current law doctrine, although it often is not explicit about the parallel and integrated operation of its excuse defenses, does much to perform this exculpatory function. However, the systematic perspective of excuses also reveals some serious shortcomings of current doctrines.