Youth victim of nitrous oxide-related accident

On 1 November 2025, at approximately 5 a.m., Mathis, a 19-year-old student, was struck by a 31-year-old driver suspected of inhaling nitrous oxide while driving at high speed on Boulevard de la Liberté in Lille. The incident highlights the growing dangers associated with the drug’s use and its impact on public safety.

Rise in nitrous oxide use and its risks

Nitrous oxide, often referred to as "proto," has become increasingly accessible and its effects are well-documented. These include loss of consciousness, neurological damage, cardiovascular disorders, and a rise in road accidents caused by impaired driving. The drug’s appeal among younger users has raised concerns about public health and safety.

Local governments take proactive measures

Faced with the rapid spread of nitrous oxide use, local authorities have moved beyond awareness campaigns. Cities such as Cannes, Béziers, Bondy, and Puteaux have equipped their municipal police with detection tools to enforce the "RIPOST" law. These tools allow for testing exhaled air for the presence of the drug.

New detection technology deployed

The OCIN₂O device, developed by the French company Olythe, is used similarly to an alcohol breathalyzer. It can detect nitrous oxide in exhaled air for at least 60 minutes after use, with confirmation requiring a blood test. This technology is being adopted by mayors who aim to enhance road safety and enforce new regulations.

Legal consequences for misuse

The "RIPOST" law, adopted this summer, imposes strict penalties for driving and possessing nitrous oxide. Offenders face up to three years in prison and fines of up to 9,000 euros for driving under the influence, while possession beyond certain limits carries a two-year prison sentence and a 7,500 euro fine. Sales to private individuals will be banned from February 2027.

International adoption of detection tools

France is not alone in addressing the issue. In Denmark, police have tested Olythe’s exhaled air detectors since January 2026, while Belgium has conducted conclusive tests. Evaluations are also underway in Dublin and the United Kingdom. These efforts aim to standardize detection practices and improve road safety across Europe.