Homicide and mental disorder

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Target exams

Red flags

• Untreated first-episode psychosis with persecutory or threat/control-override content and access to a named person — urgent assessment and treatment pathway
• Family or partner reporting escalating fear of a person with active psychosis or morbid jealousy — treat as high dynamic risk until access and means are secured
• Homicide in custody or hospital with ongoing suicidal ideation — suicide risk after killing is immediate and high-yield
• Dual diagnosis relapse with weapons access and prior violence — do not reassure from diagnosis alone
• Court report requested without primary sources (police brief, toxicology, contemporaneous notes) — do not finalise responsibility opinions until multi-source data reviewed
• Equating schizophrenia label with legal insanity or with high absolute homicide risk — exam and clinical failure