The principle of mistake of fact is the principle in criminal law relating to honest mistake.
This principle means that a crime may be mistakenly committed without the express intention to commit such a crime.
For example, a person may take an item which he believes to be his without realizing that it is not. Based on this honest mistake, the criminal intention of permanent property deprivation is negated.
Thus, since this mistake of fact is honest and reasonable, the effect of the principle of mistake of fact is that the person will not be found guilty of theft by the judge.
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