Firesetting and Arson: Psychological Risk Factors and Treatment
Author: Ukrainian Psychological Hub · Published: October 11, 2026 · Editorial Policy
Deliberate firesetting is a behavior that can arise from different psychological, developmental, interpersonal, and situational processes. Arson is a criminal-law category, while pyromania is a narrowly defined psychiatric diagnosis. The distinctions matter because a person's behavior, clinical condition, legal responsibility, and estimated risk of future behavior require different evidence. There is no reliable universal psychological profile of a person who sets fires (Burton, McNiel, and Binder, 2012).
This article explains what the best available research shows about fire-related motivations, psychological correlates, recurrence, structured assessment, treatment, juvenile intervention, and forensic limitations. It emphasizes what scientific evidence can establish, where it remains preliminary, and how practitioners should distinguish a clinical opinion from a legal finding.
Firesetting, arson, and pyromania: three distinct concepts
Firesetting refers broadly to intentionally initiating a fire. In psychological research it often includes intentional acts that did not result in a charge, conviction, or formally investigated crime. This broad category allows researchers to examine behavioral patterns that legal records may miss. The term is not itself a mental disorder or a legal verdict. Ordinary lawful fire use and accidental ignition require separate examination of context and intent.
Arson is an offense defined by the criminal law of a specific jurisdiction. Statutes vary in their treatment of property, intent, recklessness, aggravating circumstances, resulting harm, and applicable defenses. A fire's origin and cause must be investigated on physical evidence; a psychological profile is incapable of determining them. The National Fire Protection Association's NFPA 921 guide describes an evidence-based framework for origin-and-cause investigation.
Pyromania is a psychiatric impulse-control diagnosis involving a specific pattern of recurrent deliberate firesetting and associated psychological features, subject to exclusions. It cannot be inferred from an allegation of arson, an interest in flames, or the seriousness of destruction. Fires set for revenge, material gain, concealment, or other external reasons do not automatically meet the diagnostic concept. Pyromania is considered uncommon among people with documented arson histories; its population prevalence remains uncertain (Burton et al., 2012).
A case may therefore involve a confirmed intentionally set fire without a diagnosed disorder, a mental disorder without a criminal arson conviction, or an alleged arson in which the person's mental state has not been evaluated. These distinctions should be preserved in clinical notes, expert reports, research summaries, and public discussions.
Why do people deliberately set fires?
Motivation is heterogeneous. An individual incident may be associated with interpersonal retaliation, instrumental benefit, experimentation, emotional distress, fascination with fire, perceived control, or several interacting circumstances. Motives cannot be read reliably from a fire scene alone; investigators need the chronology, corroborated behavior, and competing explanations. A psychological theory is a framework for hypotheses rather than a substitute for evidence of a particular act.
Anger, grievance, and conflict
Some incidents occur during escalating arguments or long-standing grievances. A person's interpretation of humiliation, perceived injustice, and available coping responses may become relevant to a psychological formulation. Anger is widespread, however, and its presence is not a diagnosis, an offense predictor, or evidence that a specific person started a fire. The evaluator must examine the actual sequence of events and alternative explanations.
Instrumental and situational motives
Fire may be used in an attempt to damage property, obtain a financial benefit, conceal another act, intimidate, or pursue some other specific objective. Such accounts are evaluated largely through investigative and contextual evidence. Calling a fire instrumental describes a potential purpose and does not establish guilt, clinical impairment, or a particular stable personality.
Fire-related interest and learned associations
For some people, fire becomes associated with excitement, emotional relief, mastery, or habitual responses. Ordinary curiosity about fire must be distinguished from a problematic learned pattern. Research instruments can assess fire-specific attitudes or associations, but a score does not show who started a particular fire. The Firesetting Questionnaire validation study supports its potential use in identifying treatment needs, not as a stand-alone determination of crime or future danger.
Distress and difficulties regulating emotion
Some clinical accounts describe deliberately set fires in connection with intense distress, impulsivity, interpersonal instability, or maladaptive coping. These are possible correlates, not universal explanations. A 2025 systematic review of research involving women who set fires identified associations with emotional regulation, self-harm or suicidal ideation, coping problems, and relationships, while explicitly finding no established causal risk factor.
The Multi-Trajectory Theory of Adult Firesetting
Gannon and colleagues proposed the Multi-Trajectory Theory of Adult Firesetting, which combines developmental background, social circumstances, fire-related learning, emotional and cognitive processes, and event-specific conditions. The framework describes prototype pathways and encourages individualized formulations. It is a theoretical synthesis, not a validated diagnostic test, a uniquely confirmed causal model, or a method for calculating a particular person's probability of arson.
Which psychological risk factors have empirical support?
A risk factor is a measured characteristic associated with an outcome in a particular sample. It is not automatically a cause. A static characteristic, such as past documented incidents, cannot be changed; dynamic factors such as coping or some fire-related beliefs may be targets of intervention. The practical relevance of either depends on the person, setting, outcome, and quality of the original study.
Previous firesetting and offending history
Verified prior deliberate firesetting is relevant when assessing the possibility of recurrence. Clinicians must distinguish verified behavior from allegations, accidents, rumor, and incidents with disputed intent. Broader offending history may provide additional context, although fire-specific risk is not interchangeable with a generic criminality measure.
In a meta-analysis of 25 untreated samples, Sambrooks and colleagues estimated repeat criminal arson at approximately 8–10%, broader repeat deliberate firesetting at around 20%, and general reoffending at 57–66%. These observations arise from heterogeneous populations and different follow-up periods. They are group averages, not individualized risk percentages.
Fire-specific beliefs and behavior
Problematic interest in fire, fire-related expectations, offense-supportive attitudes, and relevant emotional responses may help identify therapeutic needs. Some psychometric studies show internal consistency and the ability to distinguish study groups. This is not the same as prospective predictive validity, calibration, or proven fairness when applied in courts or to diverse populations (Gannon et al., 2023).
Mental illness, substance use, and intellectual or developmental needs
Psychiatric conditions, intoxication, disability-related needs, or acute symptoms may be relevant to some particular incidents. A diagnosis by itself does not establish causation, dangerousness, or criminal responsibility. Evidence drawn from secure psychiatric or prison settings cannot be generalized to all people with the same diagnosis. Where there is a genuine clinical issue, evaluation should address contemporaneous symptoms, functioning, collateral information, alternative explanations, and the specific legal question (Burton et al., 2012).
Research involving women and underrepresented groups
Much of the older literature emphasizes male prisoners and forensic inpatients. The 2025 systematic review by Kitson-Boyce and colleagues located only 12 studies relevant to women's possible firesetting risk factors, mostly from the United Kingdom. No identified factor was shown to cause firesetting. The available evidence requires cautious interpretation for sex, gender, cultural, and population differences; it does not justify demographic stereotyping.
Firesetting in children and adolescents
Children may experiment with fire because of curiosity and incomplete appreciation of danger. Other young people may act in the context of peer influence, distress, conflict, sensation seeking, or broader behavioral concerns. These patterns require developmental assessment and immediate attention to safety. A single episode in childhood does not justify describing a child as a future arson offender.
Assessment of youth behavior should examine age, knowledge of consequences, supervision, repetition, severity, context, access to ignition materials, and available family supports. Practitioners should also ask whether the young person faces emotional difficulties or social stress and whether the incident forms part of a larger pattern. Serious or repeated events can warrant specialist assessment. The U.S. Fire Administration recommends prevention through supervision, teaching fire safety, safe storage of ignition materials, functional smoke alarms, and contact with local fire services.
Fire safety education is common, yet improved knowledge is different from demonstrated prevention of repeated offending. Johnston and Tyler's 2022 review identified 23 intervention manuscripts but found methodological weaknesses. A later systematic review of 21 studies and 4,735 young people described benefits for fire-safety skills and knowledge, while evidence that secondary educational interventions reduce recurrence remained limited. Families and services should match support to each young person's actual needs.
How often does deliberate firesetting recur?
The answer depends on what counts as recurrence. Official arson convictions, charges, institutional incidents, parent reports, and self-reports measure different outcomes. A study that counts only convictions may miss unrecorded deliberate fires, while a study that counts all reported episodes can find a higher rate. Follow-up duration and opportunity to reoffend also influence observed results.
The Sambrooks et al. meta-analysis found substantial variability among included samples. Its estimates of roughly 8–10% new arson, approximately 20% broader new firesetting, and 57–66% general reoffending are useful for understanding distinct outcomes. Applying any one of these numbers as a prediction about a named individual would ignore the study's population restrictions and measurement limitations.
Low event frequency also changes the meaning of predictive tests. Even an assessment tool with acceptable discrimination can flag many people who will not commit the predicted event. These false positives have consequences for liberty, reputation, and treatment; false negatives matter for safety. Sensitivity, specificity, positive predictive value, negative predictive value, calibration, and the underlying event rate should be reported for the intended population and follow-up period. There is no scientifically justified universally accurate firesetting score.
How is firesetting risk assessed in forensic practice?
The first step is to establish the referral question. A therapist assessing treatment needs, a court considering a psycholegal issue, and investigators examining the origin of a fire are performing different tasks. Their reports should not merge an individual's clinical condition with the legal elements of arson or treat a numerical score as evidence of guilt.
Behavioral history and individual formulation
A careful evaluation reconstructs the events before, during, and after an incident, the person's explanations, any verified earlier fires, relevant social relationships, emotional states, opportunities, and potential protective supports. The clinician identifies corroborated facts, self-report, contested accounts, and plausible competing hypotheses. Reasoning should be transparent and open to revision.
Multiple information sources and appropriate expertise
Interviews can be integrated with records and collateral data when ethically and legally appropriate. Fire origin and cause are assessed by qualified fire investigators, ideally through a systematic approach such as NFPA 921. Clinical interviews and psychological tests do not determine fire dynamics. The APA Specialty Guidelines for Forensic Psychology emphasize competence, impartiality, examination of rival hypotheses, multiple sources, and clear communication of limitations.
Questionnaires and limitations of scores
A questionnaire can measure reported fire-related attitudes, emotional processes, or treatment targets within the scope of its validation. Internal reliability, construct validity, classification of studied groups, and prediction of subsequent arson are distinct psychometric questions. A fire-specific score cannot be called a validated predictor unless independent prospective outcome data demonstrate that use. Language, age, culture, clinical setting, and other population differences may limit transferability.
General violence or reoffending instruments may help answer a broader forensic question, but evidence for generic violence is not necessarily evidence for fire-specific reoffending. Our separate English Hub analysis, Violence Risk Assessment: What It Can Predict and Where It Fails, examines discrimination, calibration, false positives, and ethical use more generally.
Protective factors and practical management
Relevant supports may include effective coping skills, stable relationships, appropriate supervision, access to care, engagement in intervention, and changes in immediate opportunities for harm. These should be understood in context and re-evaluated over time, rather than treated as numerical points that cancel a risk score. A proportionate management plan should distinguish actions under a person's control from those managed by services or legal authorities.
What treatments are available for adults who deliberately set fires?
Treatment begins with a formulation of the individual incident pattern and maintaining processes. Depending on clinical needs, it may address emotion regulation, anger, coping, conflict resolution, distorted fire-related beliefs, safety skills, problem-solving, and co-occurring conditions. A program that helps one institutional group cannot automatically be assumed effective for youth, community referrals, or everyone convicted of arson.
Cognitive behavioral programs and FIP-MO
CBT-based interventions have the strongest direct evaluation base in the still-small adult firesetting literature. An evaluation of the Firesetting Intervention Programme for Mentally Disordered Offenders (FIP-MO) involved 63 people who began treatment and a treatment-as-usual comparison group. Participants completing the program improved on measures including problematic fire associations and anger expression. Such changes are meaningful intermediate outcomes, but do not demonstrate reliably reduced long-term arson convictions.
The 2024 systematic review by Kipoulas, Sideri, Driver, and Beazley included 14 eligible intervention studies involving 343 adults. Many were small, selected, single-case, or otherwise methodologically limited. Group-based CBT in secure settings showed some improvements in fire-specific psychological outcomes, while long-term controlled recidivism evidence was sparse. The review called for larger multicenter studies and better follow-up.
Addressing co-occurring mental health and social needs
When someone has depression, psychosis, substance-related problems, trauma-related symptoms, or disability-specific support needs, established care for those conditions can be important. Treatment should not assume the diagnosis caused the fire or that managing symptoms alone will address all fire-specific behaviors. Practical social support, continuity of care, and collaborative risk management may form part of the plan.
What would establish lasting treatment effectiveness?
High-quality studies should compare appropriate groups, record treatment fidelity, define recurrence clearly, include community follow-up, measure both benefits and harms, and examine who does or does not respond. Better self-reported coping, fewer troubling beliefs, fewer fire incidents, and fewer criminal convictions are distinct outcomes. The current scientific picture is promising for some targeted psychological changes and substantially less conclusive for long-term prevention of arson (Kipoulas et al., 2024).
Forensic opinions, criminal responsibility, and the law
A criminal investigation addresses whether a fire was deliberately set, who may be responsible, what evidence supports attribution, and how the applicable statutory elements are met. A psychologist may be retained to assess a mental-state or capacity question under a jurisdiction-specific standard. Diagnosis, alleged motive, risk factors, competence to stand trial, criminal responsibility, and legal guilt remain separate findings. No clinical scale substitutes for a criminal court's required proof.
Legal definitions and defenses differ among U.S. states and international jurisdictions. A person can have a psychiatric diagnosis while remaining legally responsible, and a psychological opinion about impaired functioning is not itself a judicial decision. Psychologists should identify the precise legal referral question and explain the data and limits of their expertise, following the APA's forensic professional guidelines.
Ethics, fairness, and the dangers of stereotypes
Firesetting can cause severe harm. Research and practice must therefore combine serious prevention with accuracy, individualized assessment, and respect for procedural rights. Clinical diagnosis is not synonymous with offending. A demographic characteristic, disability, interest in fire, or test score cannot establish responsibility for an incident or an inevitable future event.
Research dominated by people in prisons and secure hospitals may have limited applicability to women, children, cultural minorities, and general community groups. Language adaptation and local validation are important, but often missing. Where subgroup data, calibration, or cross-jurisdiction validation are absent, an assessor should explicitly state that limitation. Exaggerated certainty can create stigma, unnecessary restrictions, or a failure to address actual needs.
Common misconceptions
Everyone who commits arson has pyromania
Pyromania is a rare and specific clinical diagnosis. The offense of arson covers varied contexts and motives. A criminal charge neither establishes pyromania nor any other mental disorder (Burton et al., 2012).
An interest in fire is evidence of criminal propensity
Interest can be ordinary and harmless. In selected populations, problematic fire-related beliefs may be relevant to intervention, but interest alone does not establish deliberate offending or an individual prediction.
Mental illness is the explanation for arson
Mental illness may matter in a particular evaluated case. It cannot be assumed to explain the behavior and does not generally imply criminality. Case-specific evidence and competing explanations remain essential.
An assessment score proves who will set the next fire
Validated psychometric measurement and individual event prediction are different tasks. Even appropriately studied tools generate false positives and false negatives and require careful interpretation of base rates, population, and purpose.
Frequently asked questions
Is all firesetting arson?
No. Firesetting is a broader behavioral term. Whether a particular event is a criminal offense depends on jurisdiction, the circumstances, and legally established elements.
Is pyromania the same as arson?
No. Pyromania is a clinical diagnosis with specific criteria; arson is a legal offense. Most people who commit arson do not receive a pyromania diagnosis.
What is the main psychological cause of arson?
Research supports multiple pathways and circumstances rather than one universal cause. Emotional, learned, interpersonal, and instrumental mechanisms are hypotheses to evaluate against the actual evidence.
Can people who deliberately set fires benefit from therapy?
Some specialist CBT-based programs improve relevant fire-related psychological measures in studied groups. The evidence for long-term reduction of arson recidivism remains limited, and care should be individualized (Kipoulas et al., 2024).
Does childhood firesetting mean someone will become an adult arsonist?
No. Childhood episodes differ greatly in meaning, seriousness, and repetition. The appropriate response is developmentally sensitive safety and assessment, with specialist assistance when needed.
What should caregivers do if a child starts dangerous fires?
Prioritize safety and supervision, secure ignition materials, ensure smoke alarms and an escape plan, and contact local fire services or an appropriate child mental health professional for repeated or serious incidents. Call emergency services if there is an immediate danger (U.S. Fire Administration).
Can a psychological profile prove an arson allegation?
No. A profile cannot establish fire origin, identity, or criminal responsibility. Evidence must be interpreted by professionals with appropriate expertise and adjudicated under the relevant law.
Related articles
For a broader discussion of criminal offending pathways, see Why Do People Commit Crimes? What Psychology Actually Shows. For the specific strengths and limitations of risk assessment, see Violence Risk Assessment: What It Can Predict and Where It Fails. Both links lead to already published English articles.
Related Articles
References
American Psychological Association. (2013). Specialty guidelines for forensic psychology. American Psychologist, 68(1), 7–19. https://doi.org/10.1037/a0029889.
Burton, P. R. S., McNiel, D. E., & Binder, R. L. (2012). Firesetting, arson, pyromania, and the forensic mental health expert. Journal of the American Academy of Psychiatry and the Law, 40(3), 355–365. https://jaapl.org/content/40/3/355.
Gannon, T. A., Ó Ciardha, C., Doley, R. M., & Alleyne, E. (2012). The Multi-Trajectory Theory of Adult Firesetting (M-TTAF). Aggression and Violent Behavior, 17(2), 107–121. https://doi.org/10.1016/j.avb.2011.08.001.
Gannon, T. A., Olver, M. E., Alleyne, E., et al. (2023). The development and validation of the Firesetting Questionnaire. Journal of Psychopathology and Behavioral Assessment, 45, 27–47. https://doi.org/10.1007/s10862-022-10011-x.
Johnston, K., & Tyler, N. (2022). The effectiveness of fire safety education interventions for young people who set fires: A systematic review. Aggression and Violent Behavior, 64, 101743. https://doi.org/10.1016/j.avb.2022.101743.
Kipoulas, E., Sideri, A., Driver, B., & Beazley, P. I. (2024). The effectiveness of psychological interventions for adults who set fires: A systematic review. Aggression and Violent Behavior, 78, 101945. https://doi.org/10.1016/j.avb.2024.101945.
Kitson-Boyce, R., Mackay, J., Bell, K., Gair, H., & Milani, S. Z. (2025). What do we know about the risk factors for women's firesetting behavior: A systematic review. Criminal Justice and Behavior, 52(9). https://doi.org/10.1177/00938548251336789.
National Fire Protection Association. (2024). NFPA 921: Guide for Fire and Explosion Investigations (2024 ed.). NFPA official source.
Sambol, S., Dadswell, K., Collier, G., et al. (2025). Systematic review on the effectiveness of primary prevention and secondary intervention programs aimed at reducing youth misuse of fire. Adolescent Research Review, 10, 487–514. https://doi.org/10.1007/s40894-024-00250-2.
Sambrooks, K., Olver, M. E., Page, T. E., & Gannon, T. A. (2021). Firesetting reoffending: A meta-analysis. Criminal Justice and Behavior, 48(11), 1634–1651. https://doi.org/10.1177/00938548211013577.
Tyler, N., & Gannon, T. A. (2012). Explanations of firesetting in mentally disordered offenders: A review of the literature. Psychiatry, 75(2), 150–166. https://doi.org/10.1521/psyc.2012.75.2.150.
Tyler, N., et al. (2018). An evaluation of a specialist firesetting treatment programme for male and female mentally disordered offenders (FIP-MO). Clinical Psychology & Psychotherapy. https://doi.org/10.1002/cpp.2172.
U.S. Fire Administration. (n.d.). Youth firesetting. FEMA. USFA official source.