Defenses Flashcards
4 tests for insanity
1- M’Naghten Test
2- MPC Test
3- Irresistible Impulse Test
4- Durham Rule
Who bears the burden of establishing defenses of insanity?
Fed Court- D must bear the burden and must prove with clear & convincing evidence
State Court- preponderance of the evidence standard
M’Naghten Test
1- at the time of the crime, he was laboring under the defect such that did not know the NATURE and QUALITY of the act
2- if he did know, he didn’t know that it was wrong
Irresistible Impulse Test
D had a mental disease that kept him from controlling his conduct
MPC Test
at the time of conduct:
1- D lacked substantial capacity to appreciate the criminality (wrongfulness) of his conduct
2- or to conform his conduct to the requirements of lawn
Durham Rule
D’s unlawful act was the product of mental disease of defect
***“but for” the defect
Incompetency
1- prevents D from being tried, convicted, or punished unless D has a reasonable and rational understanding of the proceedings
2- If D is incompetent, he cane be tried after competency is restored
3- proof in all courts is preponderance of the evidence
Diminished Capacity
just short of insanity, negates the mens rea element of a crime
When is Voluntary Intoxication a defense?
1- when it negates the existence of an element of the crime
2- can negate specific intent, NOT general intent
When is Involuntary Intoxication a defense?
when it meets the same circumstances as insantiy
Insanity Generally:
an affirmative defense that at the time of the crime, D as a result of severe mental disease or defect, was unable to appreciate the nature and quality or wrongfulness of his acts
An aggressor can retain the right of self-defense in 2 ways
1- upon complete withdrawal perceived by the other party
2- escalation of force by the original victim
***some jdxns require role of retreat
Self-Defense requires:
a reasonable belief of imminent danger of unlawful bodily harm
Rule for Self Defense of a 3rd Person
Majority- focuses on reasonableness of the D’s belief
Minority- D steps into 3rd person’s shpes
Rule for Necessity
can be used to avoid imminent injury to avoid a greater harm