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Mistake

In general, any error or misconception. 

In contract law, a situation where the parties did not mean the same thing when they agreed to a term or provision.  Also, when at least one contracting party held a belief that was factually or legally false.  As a result, the contract may be subject to modification or rescission.

In criminal law, a defense that claims either a misconception of the law or some fact.  The defense of mistaking the law almost never succeeds.  Mistakes of fact can work as a defense more often, especially if they are reasonable.

Definition from Nolo’s Plain-English Law Dictionary

1) An error which causes one party or both parties to enter into a contract without understanding the obligations or results. Such a mistake can entitle one party or both parties to a rescission (cancellation) of the contract. A mistaken understanding of the law (as distinguished from facts) by one party only is usually not a basis for rescission. 2) An error as to facts or law made by a judge. Such errors may be harmless (not meriting a reversal) or material (a reversible error).

Definition provided by Nolo’s Plain-English Law Dictionary.

August 19, 2010, 5:20 pm