Actus Reus
The physical or external part of the crime. Actus reus is to be interpreted as the comprehensive notion of act, harm and its connecting link, causation, with actus expressing the voluntary physical movement in the sense of conduct and reus expressing the fact that this conduct results in a certain proscribed harm, i.e., that it “causes” an injury to the legal interest protected in that crime.
Three Elements of Actus Reus
(a) (1) a voluntary act (or rarely, a failure to act (omissions)); (b) (2) that causes;
(c) (3) social harm
Voluntary Act
A voluntary act: One is responsible only for those consequences that are caused by his actions.
(1) Voluntary: A human being causes the bodily action, and it is of their own conscious will to do so
(2) Act: A bodily movement, a muscular contraction. Involves physical, although not necessarily visible behavior.
Voluntary Act under the Model Penal Code
(1) Provides that no person may be convicted of a crime in the absence of conduct that includes a voluntary act or the omission to perform an act of which he is physically capable.
(2) Defines act as a bodily movement whether involuntary or voluntary
(a) It does not determine voluntary except partially and indirecting by listing bodily movements that are involuntary
(i) Reflexes, convisons, conduct during unconsciousness, sleep, or due to hypnosis, any conduct that is not a product of the effort or determination of the actor, either conscious or habitual.
(3) For possession, it constitutes an act if the possessor either knowingly obtained the object possessed or knew she was in control of it for a sufficient period to have been able to determinant possession
Mens Rea vs Voluntary Act
(1) Mens rea: Signified the actor’s state of mind regarding the social harm of the offense
(2) Voluntary act: Applies to an act that caused the social harm.
Involuntary Act Defense
Not responsible for the consequences that are caused by actions in which the body is causally implicated by means of the body (reflexive actions, spasms, seizures, convulsions, and bodily movements while the actor is unconscious or asleep)
Two ways that Actus Reus can be defined in offense
Defenses to Actus Reus (aka involuntary acts)
Unconscious Acts that are NOT self induced:
1. someone gives you a dink that is laced with something - resulting actions would have unconsciousness as a defense
Omissions
Rule: a person has no criminal law duty to act to prevent harm to another, even if they can do so at no risk to themself, and even if the person imperiled may die without assistance
*moral culpability does not always mean criminal culpability
Exceptions to the omissions rule