Operation Medusa: Seven Countries Unite Against Drug-Facilitated Sexual Assault
Police forces from seven countries, coordinated by Europol and led by German and British authorities, have joined forces in an unprecedented international operation targeting drug-facilitated sexual assault (DFSA), known in French as “soumission chimique.” Codenamed Operation Medusa, the effort has resulted in the identification of 156 victims and perpetrators, 57 arrests, and 158 safeguarded victims, according to Europol.
The Operation
Launched in April 2026 and led by Germany’s Federal Criminal Police Office (BKA) and the UK’s National Crime Agency (NCA) with support from Europol, Operation Medusa brought together 29 investigators from seven countries at NCA headquarters in London from June 22 to 24. Participating nations included Brazil, Canada, France, Hungary, the Netherlands, Spain, and the United States, with Germany and the UK leading the effort.
As Deutsche Welle reported, the operation has already led to 113 investigations being launched and 274 new investigative leads generated. Europol also identified four previously unknown misogynist online communities where perpetrators coordinated their activities.
A Hidden Crime
According to the BKA, many victims remain unaware they have been assaulted. “This is because the sedatives and painkillers administered prevent the victims from remembering the incident or immediately feeling the physical effects of the rape,” the agency stated.
The modus operandi typically involves perpetrators targeting people in their close social circles, often intimate partners. Victims are sedated with “amateurish” mixtures of painkillers, medications, and alcohol — a potentially life-threatening combination. Assaults are then filmed and shared online through encrypted messaging services, forums, and closed chat groups.
Europol described these online networks as spaces “where perpetrators objectify and dehumanise victims,” using encrypted platforms to “exchange experiences, normalise abusive behavior, facilitate the illegal trade in prescription medications and narcotics and coordinate criminal acts.”
The Online Dimension
Nigel Leary, the NCA’s deputy director, told The Guardian that investigators had uncovered “a truly international network with group members identified in dozens of countries spanning every continent.” He described seeing users “actively engaging with other like-minded individuals discussing in graphic detail how they want to drug their victims to commit the most heinous sexual abuse.”
The NCA has identified more than 270 individuals linked to a single online forum and its successors since October 2025, and has disseminated more than 210 intelligence packages to law enforcement partners, with over 90% sent abroad — underscoring the transnational nature of these crimes.
The Pelicot Effect
The operation comes in the wake of the landmark Gisèle Pelicot case in France, where her ex-husband was sentenced to 20 years for drugging her and soliciting dozens of men to rape her while she was unconscious over nearly a decade. Fifty men were found guilty of rape or sexual offences in December 2024.
However, experts cited by RTBF / Les Grenades note a troubling paradox: while the Pelicot case raised global awareness, it may have emboldened some perpetrators who feel more empowered to share techniques and materials online. The “Pelicot effect” appears to have both positive dimensions — legislative reform and awareness — and negative ones, including the normalization of discussion among perpetrators.
Belgium’s Own Battle Against Chemical Submission
While Belgium was not a participant in Operation Medusa, the country has its own recent history with chemical submission cases that underscores the urgency of the issue. In 2025, an investigation in Kortrijk identified 41 victims who had been drugged with ketamine in local cafes. In April 2026, a 61-year-old man dubbed the “Flemish Pelicot” was sentenced to 10 years in Antwerp for drugging and raping three partners, with over 100,000 images found on his devices.
Belgium reformed its sexual criminal code in 2022 to define rape by lack of consent, specifying that consent cannot be inferred from silence or lack of resistance and can be withdrawn at any time.
Legal Implications
Cases linked to Project Medusa involve charges beyond sexual assault, including dangerous bodily harm and attempted murder, as sedating another person is a criminal offence in itself. The European Parliament adopted a report on April 28, 2026, calling for a common EU definition of rape based on lack of consent, after earlier attempts to harmonize definitions were blocked by several member states.
What’s Next
Investigations are ongoing in all participating countries. Europol continues to coordinate international cooperation beyond the operational activity, and the NCA has warned that many more groups “as yet unidentified by law enforcement” remain involved in this type of offending. Helen Millichap, director of the NCA’s National Centre for Violence Against Women and Girls and Public Protection, described “organised drug-facilitated sexual assault” as “a serious and evolving threat” requiring an equally evolving response from law enforcement worldwide.