A crime committed under the influence of sudden or extreme passion. For instance, a man's attack on another person with an axe after that person insulted the attacker's wife might be considered a crime committed in the heat of passion. 3 So. 551. More frequently, killing an adulterer or adulteress upon the sudden discovery of adultery is characterized as a crime committed in the heat of passion. Heat of passion is a defense to the mens rea, or intent element of murder, the rationale being that a person whose passions are suddenly provoked is incapable of premeditation. Id. The defense will reduce a murder charge to a manslaughter charge and hence reduce a defendant's possible punishment. LaFave, Criminal Law 7.10 (3d ed. 2000). In determining whether the act was impelled by heat of passion or by malice, all circumstances must be taken into account, including the length of time between the provocation and killing, the manner of the killing, and the previous relations of the parties. 10 Mich. 212. See manslaughter.


