There is a street in Roche Bois that became, years ago, what those who live on it simply call the narco scene. A compact cluster of raw concrete and rusting corrugated iron, it has been the subject of police raids, the centre of media coverage at election time, and the backdrop for political speeches about fighting the drug menace since before most of its current residents were born. In July 2023, a meticulously planned police operation swept through it and hauled away narcotics valued at over Rs 77 million. The street was photographed. The haul was announced at a press conference. The crisis continued. The street is still what it was. The children whose insides are destroyed, as a local woman described them to Al Jazeera in terms that lodged themselves in this publication's institutional memory, are still there.

This is the essential Mauritian drug story and it has been the essential Mauritian drug story for five decades. Heroin was introduced on the island in the 1970s. By the 1990s the crisis was acute enough to mobilise a national response. The response produced arrests, sentences, seizures, campaigns and agencies. It did not produce the prosecution of a trafficking network. It did not produce the identification and dismantling of the financial infrastructure that moves money in and product out of an island of 1.3 million people with the regularity of a supply chain. It produced, with each new government, a new name for the agency responsible for fighting the problem and a new set of statistics demonstrating that the problem had not been fought.

The ENACT Organised Crime Index for Africa ranks Mauritius first in the synthetic drug trade in the Southern African Development Community region and in the top ten on the continent. This is not a ranking that belongs in a tourism brochure. It is a forensic designation of a small island as the regional leader in a criminal economy. Each year since 2015, the number of people arrested for synthetic drug offences has doubled, reaching 1,059 in 2018. Between January and October 2025, Mauritian authorities made nearly 1,000 arrests linked to synthetic drug offences, marking the island nation's most serious drug crisis in decades.

According to a 2021 official survey, around 55,000 people between the ages of 18 and 59, representing 7.4 per cent of that population tranche, consume non-injectable drugs, including cannabis, synthetics and heroin ingested by sniffing, snorting or smoking. Those who work in the treatment sector believe the real figures are considerably higher, as the survey methodology relied on small samples rather than comprehensive fieldwork. As of 2023, an estimated 14,000 people are living with HIV in the country, alongside approximately 12,000 people who inject drugs. The HIV prevalence rate stands at 32.3 per cent among people who inject drugs and 17.3 per cent among people in prison.

The drug crisis of the 1990s was structurally legible. Heroin arrived through established trafficking routes, passed through a recognisable hierarchy of importers, distributors and street dealers, and could theoretically be disrupted at multiple points in the chain if the political will and investigative capacity existed to do so. The synthetic drug problem is fundamentally different. Chemicals used for production can be imported online in powder or liquid form, and it is estimated that approximately 95 per cent of those ingredients are imported from China.

Synthetics such as Black Mamba, Rambo and Murder are made with chemicals mixed with thinner or pesticides and sprayed onto tea, tobacco or herbs, providing highly toxic hits. Schoolchildren pool together to buy a hit for 100 Mauritian rupees, the equivalent of approximately two US dollars. The economics of this market are, from the perspective of a trafficking network, close to ideal. The raw materials are legal chemicals available through ordinary import channels. The production can occur in any domestic kitchen. The distribution does not require a sophisticated logistics network. And the price point, Rs 100 per dose, places the product within reach of the youngest and most economically vulnerable users on the island.

Authorities report a surge in heroin abuse alongside synthetic substances such as cannabinoids and cathinones, which are cheaper, highly potent, and more easily available, appealing to young people and even school-age users. A 2024 public survey found drug abuse to be the country's second most pressing issue, after cost of living, with over 70 per cent of respondents viewing government measures as ineffective. That is a damning verdict from the population the policy is supposed to protect, and it has been consistent across multiple surveys and multiple governments.

Mauritius's response to the drug crisis has been primarily carceral. The Dangerous Drugs Act 2000 carries severe penalties, and successive governments have measured the seriousness of their drug policy by the number of arrests and the weight of seizures rather than by any measure of the network's actual dismantlement. The consequence is predictable and documented: the prison population includes a very high proportion of individuals convicted for drug possession or low-level dealing, while the financing, logistics and command structure of the trafficking networks that supply them have remained largely intact.

The prison itself becomes a node in the network. The HIV prevalence rate among people in prison in Mauritius stands at 17.3 per cent, a figure that reflects both the high proportion of drug users in the prison population and the public health consequences of incarcerating people with addiction without providing the treatment that would address the condition rather than merely confine it. A person imprisoned for drug possession who receives no treatment during their sentence does not emerge from prison with their addiction resolved. They emerge into the same community, often with diminished employment prospects, and the same network available. The carceral response has not disrupted the market. It has, in many documented cases, deepened the conditions that make re-entry into it likely.

The question this article is built around is the one that Mauritian political discourse consistently fails to ask with the specificity it requires. Mauritius is an island of 1.3 million people. It has a single international airport and a single commercial port. It is not, by any geographic measure, a difficult place to monitor the movement of goods and people. The volume of synthetic drug product moving through Mauritius, and the regularity of its availability in communities from Roche Bois to Rivière du Rempart, implies a supply chain of some sophistication and some continuity. Supply chains of that nature require financing. Financing of that scale leaves traces in a financial system. Mauritius has a financial intelligence unit, a Financial Intelligence and Anti-Money Laundering Act, and regulatory bodies whose mandate includes exactly the monitoring of suspicious financial flows.

The question that does not get asked at press conferences about drug seizures is this: whose money is moving, through which accounts, and why has no prosecution of a trafficking financier followed from the monitoring apparatus that Mauritius maintains? The answer to that question, whatever it turns out to be, is the drug crisis Mauritius will not name. The arrests, the seizures, the agencies and the campaigns are the surface. The financial network is the structure beneath it. And the structure beneath it has, across fifty years of Mauritius's drug history, remained substantially intact through every government, every campaign and every agency that has claimed to be fighting it.

The International Institute for Strategic Studies, the UNODC and regional bodies including ENACT have each, across multiple reports and multiple years, provided Mauritius with a consistent set of recommendations that go considerably beyond the announcement of a new agency. They include asset recovery legislation with real enforcement teeth, financial investigation as the primary tool of network disruption rather than a secondary follow-up to seizures, decriminalisation of personal drug use to reduce the prison pipeline and direct resources toward treatment, mandatory minimum standards for drug treatment in prisons, and a national data collection system that accurately reflects the scale of the problem rather than the number of arrests the police have made in a given quarter.

None of these recommendations is exotic. Several have been implemented with measurable success in contexts not dissimilar to Mauritius's. Portugal's decriminalisation model, now more than twenty years old, produced reductions in drug-related HIV infection, drug-related deaths and drug-related incarceration without producing the increase in consumption that its critics predicted. The evidence exists. The institutional template exists. What does not exist, or has not existed consistently enough to produce change, is the political decision to follow the network rather than count the arrests.