Psychiatric Disorders and Criminal Responsibility: Five Forensic Case Analyses
In this video, Dr Sanil Rege, consultant psychiatrist, examines criminal responsibility in psychiatry through five landmark forensic cases that sit at the intersection of mental disorder, neuroscience, and law. Challenging simplistic distinctions between illness and culpability, he explores how psychosis, parasomnia, neurodegeneration, and paraphilic disorders complicate legal concepts of intent and responsibility.
Dr Rege analyses postpartum psychosis, paranoid schizophrenia with somatic delusions, sleepwalking automatism, chronic traumatic encephalopathy, and paraphilic cannibalism to illustrate how different brain states influence awareness, volition, and behavioural control. Across these cases, he highlights recurring clinical tensions, including prediction failures, diagnostic adequacy without intervention, and the mismatch between psychiatric spectrums and the law’s binary judgments. This video provides clinicians with a nuanced forensic perspective on how psychiatric explanation informs, but does not resolve, questions of criminal responsibility.
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KEY TAKEAWAYS
- Severe psychosis may present with organised behaviour and coherent speech despite fixed delusional beliefs.
- Planning and psychosis can coexist, complicating legal tests of rationality and intent.
- Parasomnias demonstrate that complex, goal-directed actions may occur without conscious awareness or voluntariness.
- Neurodegenerative conditions such as CTE can produce behavioural syndromes indistinguishable from primary psychiatric illness during life.
- Some extreme criminal behaviours occur with intact reality testing, highlighting the limits of psychiatric explanation.
- Psychiatry conceptualises illness on spectrums, while criminal law requires categorical judgments of responsibility.
To build on the forensic and diagnostic concepts discussed in this video, clinicians may find the Advanced Psychiatric Formulation Series on The Academy by Psych Scene particularly valuable. This two-part on-demand curriculum equips clinicians with a structured, hypothesis-driven approach to psychiatric formulation that integrates phenomenology, neurobiology, psychodynamics, and clinical reasoning – skills essential when analysing complex constructs such as criminal responsibility and intent. Clinicians learn to refine differential diagnoses using diagnostic hierarchies, extract core psychopathological markers, and translate diagnostic clarity into personalised intervention strategies.
The Psychopharmacology Masterclass Series further complements this content by exploring core neurobiological mechanisms across major psychiatric disorders and linking symptom profiles to evidence-based psychopharmacological strategies. This series supports clinicians in integrating neuroscience with structured, evidence-based decision-making in complex clinical presentations.
Together, these programs support deeper clinical reasoning and formulation skills that enhance diagnostic precision and therapeutic impact.
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