Criminal Law Principles Flashcards
Actus Reus Definition
The act required to commit a given crime.
- A required component of every common law crime, along with mesns rea
To satisfy the actus reus requirement:
The D must perfrom a voluntary physical act, i.e. a voluntary bodily movement.
Actus Reus
A failure to act can constitute actus reus if:
- D had a specific legal duty to act;
- D had knowledge of facts giving rise to the duty; and
- It was reasonably possible for D to perfrom the duty
Mens Rea Definition
The mental element required at the time a crime was committed.
- A required component of every common law law, along with actus reus
Forms of Mens Rea
3
- Specific Intent
- General Intent
- Malice
Forms of Mens Rea
Specific Intent
D must have a specific intent or objective to commit the given crime.
- Specific intent must always be proven; never inferred.
- Mistake of fact and voluntary intoxication are available defenses
Forms of Mens Rea
General Intent
D must be aware of his actions and any attendeant circumstacnes
- may be inferred from the act itself
- Most crimes are general intent crimes
Forms of Mens Rea
Malice
D acts with reckless disregard or undertakes an obvious risk, from which a harmful result is expected
- applies to arson and common law murder.
Forms of Mens Rea
Strict Liability
No mens rea required
- No intent or awareness is required for strict libility crimes
- Arises with adminstrative, regulatory, or morality crimes.
MPC
Purposely
(subjective standard)
A person acts purposely when his conscious objective is to engage in certain conduct or casuse a certain result.
MPC
Knowingly
(subjective standard)
A person acts knowingly when he is aware that his conduct is of a particular nature or knows that his conduct will necessarily or very likey cause a particular result.
MPC
Recklessly
(subjective standard)
A person acts recklessly when he knows of a substantial and unjustifiable risk and consciously disregard it.
MPC
Negligence
(objective)
A person acts negligently when he fails to become aware of a substantial and unjustifiable risk.
Concurrence Requirment
D’s criinal act must occur concurrently with the requisite mens rea for the crime (i.e. mens rea and actus reus must exist simultaneously)
- E.g. D plans on murdering victim at her home – D is not guilty of murder if he accidentally runs over victim with his car before reaching her house.
Causation Requirment Definition
D’s conduct must be both the cause-in-fact and the proximate cause fo the crime committed.
Causation Requirment
Cause in Fact
But for D’s conduct, the result would not have occurred.
- For homicide and manslaughter, any act by D that hastens victim’s death is a cause-in-fact, even if death is already inevitable.
Causation Requirment
Proximate Cause
The actual result is the natural and probable consequence of D’s conduct, even if it did not occur exaclty as exprected.