Why Do Arsonists Set Fires? A Brief Moment of Liberation

Paris – July 13, 2026: Emergency response personnel have been under pressure for days in several regions of France. Smoke is spreading over fields and forests, roads are being closed, and residents are being evacuated to safety as a precaution. Alongside firefighting efforts, investigations into possible causes of the fires are also underway. Interior Minister Laurent Nuñez said over the weekend that 32 people suspected of causing fires since the start of summer had been arrested.

However, this figure alone does not reveal what motives the individual suspects may have had. There are major differences between negligence, deliberate arson arising from conflicts, and symptoms of pyromania classified in psychiatry. Investigators must first secure the point of origin, examine possible technical causes, and analyze witness statements and traces. Those arrested are presumed innocent until a court reaches a decision.

Psychiatrist and forensic expert Laurent Layet describes pyromania as an impulse-control disorder. Patients may experience growing inner tension before an act, followed by a brief sense of relief at the moment they set a fire. But this relief does not last. This is precisely why the term pyromania should not be regarded as an explanation that can easily be applied to every deliberately set fire.

According to experts, this disorder is rare. Not everyone who sets fires is fascinated by flames or acts because of such impulses. Arson crimes may also be driven by anger, revenge, economic gain, an attempt to conceal another crime, or recklessness with dangerous and serious consequences. The criminal-law and psychiatric assessment of a case must therefore closely examine each allegation.

In the affected areas, these distinctions are of lower priority. What matters there is whether homes, farmland, and people can be protected. In the Pyrénées-Orientales, a fire near Ille-sur-Têt has burned around 4,900 hectares of vegetation in recent days, according to the National Gendarmerie. Gendarmes supported evacuations, secured transport routes, and also took part in investigating the cause.

Extreme drought and heat increase the risk that a small spark will quickly develop into a major fire. According to the government, nine out of ten forest and vegetation fires are caused by humans, including both deliberate and unintentional acts. Prevention, restrictions in high-risk areas, and prompt reports from residents therefore remain key elements of protective measures.

Laurent Layet’s explanation is a reminder that a complex medical issue lies behind the term pyromania. It must neither serve as an excuse for destructive acts nor become a label hastily attached to suspects. While police and judicial authorities clarify individual cases, firefighters on the ground face an immediate task: preventing further fires and evacuating people from danger zones.