INI-CET EXAM -2025
Forensic Nursing & Indian laws
Medium

A person kills his friend because of his belief that he will poison him & later he was diagnosed as a case of schizophrenia. He was taken to court. Based on McNaughten's rule how is person liable for crime?

Appeared in: INI-CET EXAM -2025

Explanation

  • The McNaughten rule absolves a person of criminal responsibility if a mental disease prevents them from knowing their act was wrong.
  • In this case, the person's schizophrenia caused a delusion (that he would be poisoned), which made him believe his actions were a form of self-defense.
  • Because he was acting on this delusional belief, he was incapable of understanding that killing his friend was morally and legally wrong.
  • Therefore, according to the 'right-from-wrong' test of the McNaughten rule, he is not held criminally liable and would be found not guilty by reason of insanity.

Why Other Options Were Wrong

  • Option A: The McNaughten rule typically results in a binary verdict of either 'guilty' or 'not guilty by reason of insanity'. 'Partially guilty' is not a standard outcome under this specific legal test.
  • Option B: A 'guilty' verdict would imply that the person, despite their schizophrenia, knew that their act was wrong. The scenario strongly suggests the opposite, as the act was driven by a delusion.
  • Option D: This option correctly states one of the conditions of the McNaughten rule, but it presents it as a condition for guilt. The question asks for the outcome of the case described. Since the person did NOT know the act was wrong due to his delusion, the outcome is 'not guilty', not 'guilty'.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Flowchart: A flowchart illustrating the decision-making process under the McNaughten rule. It would start with 'Did the accused commit the act?' and branch to questions about 'Disease of the mind?', 'Did they know the nature of the act?', and 'Did they know it was wrong?', leading to a final verdict of 'Guilty' or 'Not Guilty by Reason of Insanity'.
Clinical Relevance
  • Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing The concept tested is the application of the McNaughten rule in forensic psychiatry to determine criminal responsibility in a person with a severe mental illness like schizophrenia in acute care settings.
  • Forensic nursing is a specialty where nurses work at the intersection of healthcare and the legal system. Understanding concepts like the McNaughten rule is crucial for nurses working in forensic psychiatric units.
  • Nurses must meticulously document a patient's mental state, including any delusions or hallucinations, as this documentation can become critical evidence in legal proceedings.
  • What if the person had schizophrenia but killed his friend for a reason unrelated to his delusions, such as a financial dispute? In that case, the insanity defense would likely fail, and he could be found guilty because his 'disease of the mind' did not prevent him from knowing the act was wrong.
How to Approach the Question
  • First, identify the core legal principle mentioned in the question, which is 'McNaughten's rule'.
  • Recall the two main components of this rule: (1) The person has a 'disease of the mind' and (2) because of it, they either don't know the nature of the act OR don't know it is wrong.
  • Apply these components to the scenario. The person has schizophrenia ('disease of the mind').
  • Analyze the person's motive. He acted because of a delusion (belief he would be poisoned). This delusion prevented him from understanding his act was wrong.
  • Evaluate the options based on this application. The criteria for the insanity defense are met, leading to a 'not guilty' verdict.
Concept Tested & Keywords
  • Concept Tested: The concept tested is the application of the McNaughten rule in forensic psychiatry to determine criminal responsibility in a person with a severe mental illness like schizophrenia.
  • Stem keywords: McNaughten's rule, schizophrenia, kills, belief, poison, liable for crime
  • Lead-in keywords: how is person liable
  • Clinical cues: The diagnosis of schizophrenia is a key clinical cue, as it establishes the 'disease of the mind' required by the McNaughten rule.
  • Clinical cues: The person's belief of being poisoned is a persecutory delusion, which directly impacts their perception of right and wrong.

Question ID

QtorlUZvDAIw-vnBFwPvYN

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