Model Penal Code - Criticism

Criticism

Advocates of the MPC stress that the law must be clearly defined to prevent arbitrary enforcement, or a chilling effect on a population that does not know what actions are punishable. This is known as the legality principle. However, critics say that the assumption that there are no possible legal systems between the extremes of "forbidden" and "allowed" is the central weakness of the MPC. British law, for example, assumes that a jury can decide what is "reasonable" both in the context of British law and social expectations as well as the specific accusation they are being asked to judge. Behavior may thus be deemed unlawful by a jury in cases where the MPC would require legislative change to produce a conviction.