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Sixty-five people died in Texas prisons from K2 overdoses in 2024. The year before, the figure was sixteen. That near-quadrupling does not reflect a surge in demand for synthetic cannabinoids — it reflects what happens when people locked in closed environments have no safer alternative.
K2, a synthetic cannabinoid — a chemically manufactured compound that mimics the effects of THC, the primary psychoactive molecule in cannabis — bears little resemblance to the plant it imitates. The chemicals shift constantly, making detection nearly impossible. Producers spray the substance onto paper, which slides past security systems that would catch organic cannabis. Inside, a small amount can be extraordinarily potent, and the dose is entirely unpredictable. The result, as documented by The Marshall Project, the Texas Observer, and the Miami Herald over several years, is a slow-moving overdose crisis that no national database is even tracking comprehensively.
Derek Jason LeCompte, writing for the Prison Journalism Project — which trains and publishes incarcerated writers — describes the experience of watching a cellmate babble incoherently after smoking K2, monitoring him for thirty minutes to ensure he did not overdose or become violent. LeCompte has been incarcerated in New Jersey for twenty-seven years. He writes that in that entire time, he has never encountered a substance as dangerous, as unregulated, or as widely used as K2.
The Substitution Effect
His argument is straightforward: if you cannot eradicate drug use in a closed institution — and the evidence strongly suggests you cannot — then you should reduce the harm caused by that use. The tool he proposes is adult-use cannabis, specifically in edible form.
There is a peer-reviewed study supporting the logic. Research led by Washington State University, published in 2022, found a 37 percent drop in reported poisonings from synthetic cannabinoids in US states that had legalised cannabis. The mechanism is not complicated: when a less harmful option becomes accessible, some people switch to it. The same substitution effect has been observed with needle exchange programmes in European prisons — facilities in Germany, Switzerland, and Spain have offered clean needles to reduce disease transmission, and documented no corresponding increase in overall drug use.
LeCompte's proposal focuses on edibles specifically, for a practical reason that goes beyond comfort: edibles produce no smoke, create no fire risk, and do not violate federal anti-smoking regulations in US correctional facilities. Right now, guards and incarcerated people alike breathe K2 fumes every day — a smell LeCompte compares to landfill waste — because the synthetic drug is too embedded in the informal economy of the prison to simply disappear.
A Harm Reduction Lens, Not a Permissiveness Argument
Harm reduction — the public health philosophy that prioritises reducing the negative consequences of drug use over demanding abstinence — is not a new concept in European penal policy. It is, in fact, the operating framework behind needle exchanges, opioid substitution therapy, and drug consumption rooms across the continent. What makes the cannabis-in-prisons debate interesting is that it applies that same logic to a substance that is increasingly legal outside prison walls but remains entirely prohibited inside them.
In Malta, harm reduction is built into the architecture of the country's adult-use cannabis framework. Cannabis Harm Reduction Associations (CHRAs) — licensed, non-profit clubs through which Maltese adults can legally access cannabis under Malta's 2021 cannabis reform — operate explicitly under a harm reduction mandate overseen by ARUC (Authority on the Responsible Use of Cannabis), the national regulator. The CHRA model is not built around permissiveness; it is built around the idea that informed, regulated access produces better health outcomes than prohibition. Our guide to Malta cannabis law covers the consumer-facing framework in detail.
That philosophy stops at the prison gate, as it does across virtually every jurisdiction in Europe. The conditions inside — physical dependency on whatever is available, limited access to medical support, and a black market shaped entirely by what can be smuggled — are precisely the conditions harm reduction was designed to address. Which raises an uncomfortable question for advocates and policymakers who champion harm reduction on the outside: what principle explains abandoning it on the inside?
The Limits of the Proposal
LeCompte acknowledges the counterarguments. A prison population frequently sedated on cannabis edibles creates its own safety risks. Introducing any new permitted substance into a custodial environment requires strict management, dosing controls, and staff training that most prison systems are not currently equipped to provide. There is also the political reality: in most European jurisdictions, cannabis reform in civilian contexts is still contested; reform inside prisons would be a considerably harder conversation.
But difficulty is not the same as impossibility, and the K2 data makes inaction costly. Ohio prisons recorded three synthetic cannabinoid overdose deaths in 2023 and thirteen in 2024. Florida attributed a significant share of sixty-two accidental prison deaths between 2016 and 2017 to K2. These are not abstractions. They are preventable deaths in institutions whose stated function includes keeping people alive.
The broader insight here may be less about cannabis specifically and more about what happens when harm reduction logic is applied selectively — embraced in clinics and community associations, but set aside in the one environment where people have the fewest choices and the highest exposure to risk. That inconsistency deserves a clearer answer than it has so far received.
Sources: Derek Jason LeCompte, “It’s Time to Allow Marijuana Use in Prison,” Prison Journalism Project / Marijuana Moment, https://www.marijuanamoment.net/its-time-to-allow-marijuana-use-in-prison-op-ed/; Washington State University synthetic cannabinoid study (2022), as cited in source; Texas Observer; The Marshall Project; Miami Herald.
Featured image: Photo by Maia Fotografia on Pexels
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