Forensics Flashcards
Proportion of homicide perpetrators with acute mental illness
10%
Pritchard criteria
Fit to plead
Proportion of patients with psychosis who commit homicide per year
1/10,000
Proportion of men and women who report serious sexual assault in past 12 months
women - 0.5%
men - 0.1%
Proportion of rape victims who know their attacker
90%
Peak ages of offending
male - 17/18
female - 14
Proportion of crimes committed by people with mental illness
5%
Partial defences for murder
Loss of control
Diminished responsibility
Killing pursuant to a suicide pact
Pathological intoxication
Sudden onset of aggressive and violent behaviour, not typical of the patient while sober, and occurring soon after drinking small amounts of alcohol that would not produce intoxication in most people
Proportion of prison population with antisocial personality disorder
Men - 50%
Women - 30%
Proportion of homicides commited by person with lifetime history of mental disorder
30%
Percentage of homicides committed by a person with schizophrenia
6%
Proportion of offenders that are female
1 in 5
PCL-R
Assessment scale used to diagnose psychopathy. Score 0-40, need score >25 for diagnosis.
Static-99
10 item scale to assess risk of male sex offenders (>18yrs) when released into community.
Acturarial tool
SORAG
Sexual offender risk appraisal guide
Acturarial
Variant of VRAG
SARA
Spousal assault risk assessment
Structured professional judgement tool
SVR-20
Sexual violence risk
Structured professional judgement tool
HCR-20
Historical clinical risk management tool.
Structured professional judgement tool.
Assesses risk of violence
RSVP
Risk of sexual violence protocol
Structured professional judgement tool
SAM
Stalking assessment and management
Structured professional judgement tool
RM2000
Risk matrix 2000
Acturarial tool
Sexual risk
VRAG
Violence risk appraisal guide
Acturarial tool
Incorporates PCL-R
RRASOR
Rapid Risk Assessment for Sex Offence Recidivism
Acturarial tool
Prior sexual arrests, age, ever targeted male victims, any victims unrelated to offender
Suicide rate in prisoners
133/100,000
Suicide rate on remand
339/100,000
Proportion of homicide perpetrators that were psychotic at the time of the offence
5%
Proportion of homicide perpetrators that were depressed at the time of the offence
6%
Proportion of homicide perpetrators that had contact with mental health services in 12 months prior to the offence
9%
