Criminal Law - Capacity Defenses Flashcards
Insanity - The First Requirement
D must have a mental disease or defect ; couple with one of two tests
Insanity - M’Naghten Test (Majority Test - Purely Cognitive)
The D must prove that he either:
(a) did not know that his conduct was wrong, or
(b) did not understand the nature of his conduct
Insanity - MPC Test (25% of state; Cognitive AND Volitional
D must establish that he lacked the substantial capacity to EITHER:
(a) appreciate the criminality of his conduct, or
(b) unable to conform his conduct to the requirements of law
Insanity - Distinguished from Incompetency
The issue is whether D was insane at the time of the crime. If he was, D is not guilty by reason of insanity.
Incompetency - Issue
The issue is whether, at the time of trial, the D cannot either:
(1) understand the nature of the proceedings against him; OR
(2) assist his lawyer in the preparation of his defense
Incompetency - When issues are established
If either (1) or (2) is established, trial is postponed until the D regains competency
Voluntary Intoxication - Common Law Approach (3)
- Can be a defense to SPECIFIC intent crimes ONLY
- Cannot, therefore, be a defense to malice, general intent, or strict liability crimes
- The defense of intoxication generally requires such severe “prostration of the faculties” that the defendant cannot form the requisite specific intent
Infancy - Common Law (“Rule of Sevens” - 3)
- If, at the time of the crime, the D’s age is less than 7 prosecution is NOT allowed.
- If, at the time of the crime, the D’s age is less than 14, there is a REBUTTABLE presumption against prosecution.
- If, at the time of crime, the D’s age is 14 or older, prosecution IS allowed.
Mistake - Mistake of Fact (Common Law Approach)
Whether a D’s mistake of fact will be a defense depends upon the mental state for the crime and whether the mistake is reasonable or unreasonable
Mistake - Mistake of Fact (Common Law Approach - Specific Intent Crimes)
ANY mistake of fact (even an unreasonable one) will be a defense
Mistake - Mistake of Fact (Common Law Approach - Malice / General Intent Crimes)
Only a reasonable mistake of fact will be a defense
Mistake - Mistake of Fact (Common Law Approach - Strict Liability Crimes)
Mistake of fact will NEVER be a defense
Mistake - Mistake of Fact (Common Law Redux)
Therefore:
- A reasonable mistake of fact will be a defense to ANY crime, except a crime of strict liability
- An unreasonable mistake of fact will be a defense ONLY to specific intent crimes.
Mistake - Mistake of Law (Common Law Rule)
Mistake of law is generally NOT a defense
Mistake - Mistake of Law (Common Law Exception)
If the statute specifically makes knowledge of the law an element of crime