Skip to main content
MMedVellum
MCQsExamsAtlas
DashboardPricing
MMedVellum

The exam atlas that feels like a flagship product — evidence-graded topics and exam tools for MBBS and fellowship preparation. Built to scale to fifty specialties. Educational content only — not medical advice.

llms.txt·psychiatry LLM catalog · sitemap

Atlas

  • Specialty atlas
  • MBBS / Core medicine
  • Dermatology
  • ICU Fellowship (CICM)
  • Anaesthesia
  • Emergency Medicine
  • Psychiatry Fellowship

Study & account

  • MCQ practice
  • Practice alias
  • Exam tools
  • Dashboard
  • Pricing
  • Sign in

© 2026 MedVellum. For education only — not a substitute for clinical judgement.

Clinical Atlas Prestige · Evidence-first

Psych VivasIntellectual disability — forensic dual disability

Psych Vivas · Intellectual disability — forensic dual disability

Offending and intellectual disability — structured clinical viva

Fellowship viva covering ID and offending, suggestibility, fitness, fire-setting formulation, risk tool limits, and adapted management.

clinical
On this page & tools

Target exams

FRANZCPMRCPsychABPNMD-DNB

Target exams

FRANZCPMRCPsychABPNMD-DNB
Prompt
You are the dual-disability psychiatry registrar. A 22-year-old man with mild intellectual disability is on remand for arson of a bin store at his supported accommodation. Staff report he lights fires when bored and when staff set demands. Police obtained a detailed confession after a two-hour interview without an Appropriate Adult. He says 'I just said yes so they would stop.' IQ testing years ago was 62; adaptive functioning was never formally updated. Father wants him declared 'unfit forever'. Discuss epidemiology teaching points, interview reliability, fitness versus responsibility, offence formulation including function of fire-setting, risk assessment humility, and management under RNR principles — without inventing statute section numbers.

Interpretation

Reveal interpretation

This is a dual-disability forensic viva combining mild ID, possible function-maintained fire-setting, interview reliability, and pressure for a global unfitness label.[1][3]

Epidemiology honesty. Most people with ID do not offend; method traps inflate claims. Prison diagnosed ID often ~0.5–1.5%. Fire-setting is relatively prominent in some referred IDO samples — relevant context, not destiny.[1][2][6]

Interview. “I just said yes so they would stop” maps to Clare and Gudjonsson: suggestibility, acquiescence, confabulation risk. Flag reliability; recommend supports and legal process review under local principles — no invented sections.[3]

Fitness vs responsibility. Fitness = present-state participation abilities after supports; update adaptive assessment; IQ 62 is not automatic unfitness. Father’s “unfit forever” demand is incorrect — fitness is decision/time-specific and may be restorable with education (Wall). Criminal responsibility is a separate retrospective question.[4]

Formulation. Fire-setting may serve escape from demand and attention/boredom functions; analyse ABC, access to ignition sources, prior fires, substance use, dual diagnosis. Risk tools inform but have limited PPV — formulate scenario-based risk (further fire if bored/demands/access) with protective factors.[5][6]

Management. Safety (fire access control, placement), PBS/environmental redesign, adapted offence-specific and anger/problem-solving work (Willner-type CBT where accessible), substance review, multiagency plan, least-restrictive disposition. Assess bullying/victimisation history as well as offending.[7][8]

Key points

Confession is not automatically reliable in mild ID

Suggestibility and yes-saying are core exam pearls.[3]

IQ is not fitness

Functional legal test; restoration may be possible.[4]

Function of fire-setting matters

Escape/attention pathways need PBS plus offence work, not only custody.[6]

References

  1. [1]Holland T, Clare IC, Mukhopadhyay T Prevalence of criminal offending by men and women with intellectual disability and the characteristics of offenders J Intellect Disabil Res, 2002.PMID 12061335
  2. [2]Fazel S, Xenitidis K, Powell J The prevalence of intellectual disabilities among 12,000 prisoners - a systematic review Int J Law Psychiatry, 2008.PMID 18644624
  3. [3]Clare IC, Gudjonsson GH Interrogative suggestibility, confabulation, and acquiescence in people with mild learning disabilities Br J Clin Psychol, 1993.PMID 8251959
  4. [4]Wall BW, Krupp BH, Guilmette T Restoration of competency to stand trial: a training program for persons with mental retardation J Am Acad Psychiatry Law, 2003.PMID 12875497
  5. [5]Fazel S, Singh JP, Doll H, Grann M Use of risk assessment instruments to predict violence and antisocial behaviour BMJ, 2012.PMID 22833604
  6. [6]Barron P, Hassiotis A, Banes J Offenders with intellectual disability: a prospective comparative study J Intellect Disabil Res, 2004.PMID 14675234
  7. [7]Willner P, Rose J, Jahoda A, et al. Group-based cognitive-behavioural anger management for people with mild to moderate intellectual disabilities Br J Psychiatry, 2013.PMID 23520220
  8. [8]Latvala A, Tideman M, Søndenaa E, et al. Association of intellectual disability with violent and sexual crime and victimization Psychol Med, 2023.PMID 35238292