Antisocial personality disorder — dual diagnosis crisis and risk (MEQ)

(i) Working diagnosis. Antisocial personality disorder (DSM-5-TR) with comorbid stimulant and alcohol use disorders and acute intimate-partner violence risk. Operational requirements: age ≥18; pervasive rights-violation pattern since 15 with ≥3 of 7 features (here: unlawful acts/assaults, deceit, recklessness, lack of remorse — and likely further criteria on full history); evidence of conduct disorder onset before 15 (fighting, theft, truancy); behaviour not exclusively during schizophrenia or bipolar disorder (no psychosis described). General PD criteria should be confirmed longitudinally with collateral.^[1]

(ii) Discriminators. Psychopathy is a related research/forensic construct emphasising affective-interpersonal traits (shallow affect, lack of empathy/remorse, manipulativeness) plus lifestyle/antisocial features (PCL tradition). ASPD is a clinical behavioural diagnosis; not all ASPD is highly psychopathic and the terms are not synonyms.^[2] BPD features abandonment fear, identity disturbance, affective instability, and self-harm for affect regulation; this stem lacks those and shows remorseless exploitation and CD history more typical of ASPD. Overlap of antagonism can occur — formulate primary pattern.^[1][3]

(iii) Risk formulation. Static: prior assaults, young adult age, ASPD pattern, criminal history. Dynamic: daily methamphetamine and heavy alcohol, acute grievance toward ex-partner, weapon access (ask), non-adherence history, current threat language, possible stalking after separation. Protective: any employment, prosocial supports, willingness to engage with drug treatment, legal supervision. Tools may inform structured professional judgement but have modest predictive accuracy — do not treat a score as destiny.^[6]

(iv) Immediate management. Medical clearance already done; reassess intoxication. Prioritise ex-partner safety: explore imminence, means, location knowledge; involve police/multi-agency response as indicated; document jurisdiction-specific information-sharing principles without inventing section numbers. Least-restrictive safe disposition based on acute risk (crisis admission or custody pathways may be needed if imminent uncontainable harm). Staff safety. No collusion with minimisation. Early AOD liaison.^[3][6]

(v) Medium-term plan. Honest evidence limits: Cochrane finds limited heterogeneous psychological evidence and no drug treats ASPD as a whole; NICE emphasises multi-agency working and structured engagement where possible.^[3][4][5] High-yield: integrated stimulant/alcohol treatment (motivational work, contingency structures, residential options if needed); CBT-informed impulsivity/offending work if he engages; consider MBT-informed programmes where available as emerging structured options. Pharmacotherapy only for named targets. Example: if a comorbid major depressive episode is confirmed, sertraline 50 mg orally daily with early review, limited dispensing given impulsivity/substance risk, titrate 50–150 mg as tolerated — treats depression, not ASPD. Avoid chronic benzodiazepines. Multi-agency risk plan with review dates; probation if under justice orders.^[5][7]