Model Penal Code

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The Model Penal Code (MPC) is a statutory text which was developed by the American Law Institute (ALI) in 1962. The current form of the MPC was last updated in 1981. The purpose of the MPC was to stimulate and assist legislatures in making an effort to update and standardize the penal law of the United States of America. The standard they used to make a determination of what the penal code should be was one of "contemporary reasoned judgment" — meaning what a reasoned person at the time of the development of the MPC would judge the penal law to do. The ALI performed an examination of the penal system in the USA and the prohibitions, sanctions, excuses, and authority that are used throughout. The MPC was a combination of what the ALI deemed to be the best rules for the penal system in the United States. Since its formulation, the MPC has played an important role in standardizing the codified penal laws of the United States.

1 Key Features
2 Criticism
3 Use
4 References

[edit] Key Features

A key feature of the MPC is its use of standardized mens rea (criminal mind) terms to determine levels of mental states, just as murder is considered more severe if done intentionally rather than accidentally. These terms are (in descending order) "purposefully," "knowingly," "recklessly," and "negligently," with a fifth state of "absolute liability." If an offense requires a specific mental state, than any more criminal mental state will do. Thus if an offense is defined in the form, "It is illegal to knowingly do X," then it is illegal to do X knowingly or purposely, but not to do so recklessly or negligently. Absolute liability means that it is illegal to do something, regardless of one's mental state. The use of standard terms allows laws to be relatively simply worded and comprehensible. The two highest forms of culpability, purposely and knowingly, are frequently grouped together as "intentional", where as recklessness and negligence are considered "unintentional". If a law makes an actor absolutely liable for an offense, the actor can only be guilty of what the MPC calls violations, which only deserve penalties of fines, and no jail time. See sections 2.05 and 1.04.

Another important feature is that under the MPC, any action not explicitly outlawed is legal. This concept follows the saying, "That which is not forbidden is allowed" as opposed to "That which is not allowed is forbidden." Legal scholars contrast the MPC's limits with laws passed by Nazi Germany and Soviet Russia, which allowed people to be punished for acts not specifically outlawed but similar to acts that were.

Under the MPC, ignorance of criminal law is not considered a valid defense, unless the legislature intended on making the mistake of law a defense, the law is unknown to the actor and had not been published, or the actor is acting as a result of some official statement about the law. See sections 2.02(9) and 2.04.

Certain parts of the MPC contain multiple options, inviting states to choose one. A particularly controversial topic is the proper place of the death penalty in the MPC. However, the MPC explicitly states that the "[American Law] Institute took no position on the desirability of the death penalty." Note that no state is obligated to adopt any specific part of the MPC; see below.

[edit] 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.^{[citation needed]} 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. Behaviour may thus be deemed unlawful by a jury in cases where the MPC would require legislative change to produce a conviction.^{[citation needed]}

[edit] Use

The MPC is not law in any jurisdiction of the United States; however, at least 37 states have adopted revised versions of the MPC.^{[citation needed]} Though many states only adopt portions of the MPC, states such as New Jersey, New York, Pennsylvania, and Oregon have enacted almost all of the provisions.

On rare occasions the courts will turn to the MPC for its commentary on the law and use it to seek guidance in interpreting non-code criminal statutes. It is also used frequently as a tool for comparison.