Defenses: Intoxication and Mental Health

Intoxication as a Defense

• Generally, intoxication is not a defense, as clarified under common law principles and statutory provisions.

• It may be relevant to specific intent but not basic intent, influencing the capacity to form the required mens rea.

• Section 428 of the Crimes Act contains provisions relating to intoxication, impacting its admissibility as a defense.

• Self-induced intoxication generally cannot be taken into account when assessing mens rea, limiting its use in absolving responsibility.

Self-Induced vs. Non-Self-Induced Intoxication

• Self-induced intoxication: occurs when a person voluntarily puts themselves in an intoxicated state (e.g., drinking alcohol or taking drugs). This is typically viewed more strictly by the courts.

• Non-self-induced intoxication: occurs when a person becomes intoxicated through no fault of their own (e.g., taking prescribed medication as directed). This may provide a stronger basis for a defense.

• Example:

  • Taking medication per prescription = not self-induced.

  • Intentionally taking excess medication contrary to prescription = self-induced.

Crimes of Basic Intent vs. Specific Intent

• Self-induced intoxication cannot be considered for crimes of basic intent (per 428C), meaning it cannot negate the required mens rea.

• For crimes of specific intent, intoxication can be considered when assessing if the accused formed the specific intent, potentially negating an essential element of the crime.

• Specific Intent: Offense contains an element that a specific result was intended, requiring a higher level of mens rea.

• Basic Intent: Offense does not contain an element of intent, focusing more on the act itself.

• Examples:

  • Assault occasioning bodily harm = basic intent. The intent to cause harm is not a necessary element.

  • Assault with intent to cause bodily harm = specific intent. The prosecution must prove the accused intended to cause the specific harm.

    *Murder is a high-profile exception:

  • Intention to kill or cause GBH = specific intent. This requires a clear intention to cause death or grievous bodily harm.

  • Reckless indifference and constructive murder involve foresight and knowledge, indicating a higher level of awareness.

Locating Crimes of Specific Intent

• Section 428B provides a non-exhaustive list of crimes of specific intent, offering a reference for legal practitioners.

• If an offense is on the list, it is definitively a crime of specific intent, providing clarity in legal proceedings.

• If not on the list, examine the offense for any mention of intent, analyzing the wording and elements of the offense.

Defence of Not Criminally Responsible

Act

• Mental Health and Cognitive Impairment Forensic Provisions Act (MHCIFPA). Governs the legal framework for mental health and cognitive impairment defenses.

• Do not confuse with Mental Health Act, which deals with treatment and care rather than criminal responsibility.

Relevant Sections

• Section 28: Elements of the defence. Details the criteria for establishing a successful defense.

• Section 33: Outlines the effect of a special verdict. Explains the consequences if the defense is successful.

Orders the court may make

• Remand in custody: The person may be held in a secure facility for assessment and treatment.

• Unconditional or Conditional release: Release may be granted with or without specific conditions to manage the person’s behavior and risk.

• Review requirements are in place while detained: Regular reviews ensure the person’s ongoing needs are met and risks are managed.

Elements of the Defence (Section 28)

• At the time of the act or omission, the person had a mental health impairment, a cognitive impairment, or both. The presence of such an impairment is a fundamental requirement.

• The impairment had the effect that the person did not know the nature and quality of the act or did not know that the act was wrong. The impairment must have directly affected the person’s understanding or moral reasoning.

• Morally wrong means according to the standards of a reasonable person (objective standard). This is assessed against societal norms and values.

Case Law

• Based on the McNaughton case which established these elements/rules. A landmark case that set the foundation for modern insanity defenses.

• Reinforced by the Australian High Court decision of Barter, now codified under section 28. Confirmed and codified the principles in Australian law.

Mental Health vs. Cognitive Impairment

• Mental Health Impairment: Defined in Section 4. Includes a range of psychological and psychiatric conditions.

• Cognitive Impairment: Defined in Section 5. Covers impairments in intellectual function and cognitive processes.

• Cognitive impairment is not a mental health condition; they are different. These are distinct categories with different diagnostic criteria.

• Factors to consider include:

  • Anxiety disorder

  • Affective disorder (clinical depression, bipolar disorder)

  • Psychotic disorder

  • Substance-induced mental disorder (that is not temporary)

    *DSM-5 is the yardstick (Diagnostic and Statistical Manual of Mental Disorders), but you are not expected to memorize/ know it. This provides standardized criteria for diagnosis.

    *If not sure whether something falls under Section 4 or 5, state that if it can be proven that it fits, a mental health/cognitive impairment would be proven on the facts. This allows for flexibility in applying the law to specific circumstances.

Partial Defence of Substantial Impairment

• Section 23A of the Crimes Act

• It is a partial defence for murder, reducing the charge to voluntary manslaughter. This acknowledges the impact of mental impairment on culpability.

• Requires proof of mental health impairment or cognitive impairment. The impairment must substantially affect the person’s capacity.

• Allows the court discretion in sentencing. This enables a more tailored and compassionate outcome.

• Definitions of mental health and cognitive impairment align with sections 4 and 5 of the MHCIFPA.

  *Compass mentus: Latin term related to having mental capacity.

Mental Health/Cognitive Impairment Definitions

• Mental Health Impairment definitions are in section 4C of the Crimes Act.

• Cognitive Impairment definitions are at the bottom of section 23A.

  *They are largely the same as four and five of MHCIFPA.

Scenario : Eddie Case

Facts

• Eddie, an armed forces veteran with PTSD, is undergoing psychiatric treatment. His background and treatment history are crucial.

• He takes a double dose of medication and consumes a bottle of Scotch (medication warning: effects magnified by alcohol). This combination significantly impairs his mental state.

• New neighbors, Hamed and Yasmin (from Afghanistan), visit. Eddie mistakes them for Taliban. His misinterpretation is central to his actions.

• Eddie beats Hamed and Yasmin to death with a piece of timber, then has no memory of the event. The lack of memory raises questions about his state of mind.

Possible Offenses and Defenses

• Offense: Murder or manslaughter. The specific charge depends on his intent and mental state.

• Defense: Mental health impairment. PTSD and intoxication could significantly impact his culpability.

Initial Steps of analysis

• Address intoxication. Determine its impact on his mental state and intent.

• Consider mental health or cognitive impairment. Evaluate the role of PTSD in his actions.

Intoxication Consideration

• If charged with murder, intoxication is relevant to mens rea (but general rule: cannot be taken into account for voluntariness). Intoxication may negate the specific intent required for murder.

• Because it is self induced can be taken into account to whether Eddie didn't have the right it is correct. This limits its effectiveness as a complete defense but can reduce the charge.

Mental Health Impairment-PTSD

• Given Eddie's PTSD and treatment, he may have a strong defense of substantial impairment. His pre-existing condition significantly impacts his state of mind.

• The question is whether Eddie was too intoxicated to form the intent to kill. Intoxication combined with PTSD complicates the assessment of intent.

Insanity Standard

• The accused could raise a mental health impairment. The jury must decide as per requirements in Section 28, MHCIFPA. The jury assesses whether he understood the nature of his actions or knew they were wrong.

Automatism considerations

• Sarah raised the possibility of sane automatism, but that does not appear to be strongly indicated from the facts. Eddie appeared to act voluntarily. Automatism requires a complete loss of control, which is not evident here.

Voluntariness

• Voluntariness is not really in question on the facts. It's more of a discussion of mens rea. His actions appear purposeful, shifting the focus to his mental state.

Element Consideration- M'Naghten Rules

• Did the accused know the nature of the act or know that it was morally wrong? This is the core question in determining criminal responsibility.

PTSD as qualifying illness for the defence

• PTSD isn't specifically mentioned in section 4, but it's likely to fall within it and could be proven to establish insanity. Expert testimony is needed to establish the link between PTSD and his actions.