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Related Experiment Video

Updated: Jul 11, 2026

Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses

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Threats to kill: a follow-up study.

L J Warren¹, P E Mullen, S D M Thomas

¹Victorian Institute of Forensic Mental Health, Victoria, Australia.

Psychological Medicine

|October 10, 2007

Summary

This summary is machine-generated.

Threatening to kill is a significant predictor of future violence, including homicide. Mental health clinicians should consider this risk, especially in young, substance-abusing individuals with mental disorders.

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Area of Science:

Forensic Psychiatry
Clinical Psychology
Criminology

Background:

Clinicians lack data to assess risks posed by individuals making threats to kill.
Assessing threats to kill is a common but data-poor clinical task.

Purpose of the Study:

To investigate the rate of serious violence following threats to kill.
To examine the role of mental disorder in subsequent violence after threats to kill.

Main Methods:

A data linkage study of 613 individuals convicted of threats to kill.
Assessed prior mental health service contact and subsequent criminal convictions over 10 years.
Included assessment of death from suicidal or homicidal violence.

Main Results:

44% of individuals were reconvicted of violence within 10 years, including 3% homicide.
Psychiatric contact was associated with higher rates of subsequent violence (58%).
Highest risks identified in young, substance-abusing, mentally disordered individuals, and those without prior convictions.

Conclusions:

Threats to kill are predictive of significant subsequent violence, contrary to some literature.
Mentally disordered individuals are over-represented among threat offenders and at high risk for future violence.
High-risk individuals include young, substance-abusing mentally disordered persons, with or without prior convictions.