By Stephanie Lee
Here, the different rules and tests that occured throughout most of the American court systems regarding the insanity defense will be looked at.
The origins will start in England with the M’Naghten Rule that will also find its way into the American Court system. From there the Irresistible Impulse Test will be explored next. After the Irresistible Impulse Test, the Durham Rule will be explained and how its short lived existence fit in the American Court system. Lastly, the Brawner Rule, which overturned the Durham Rule, will be explored.