Ever since Portugal enacted drug decriminalization in 2001, reformers have argued that North America should follow suit. The Portuguese saw precipitous declines in overdoses and blood-borne infections, they argued, so why not adopt their approach?

But when Oregon and British Columbia decriminalized drugs in the early 2020s, the results were so catastrophic that both jurisdictions quickly reversed course. Why? The reason is simple: American and Canadian policymakers failed to grasp what led to the Portuguese model’s initial success.

Contrary to popular belief, Portugal does not allow consequence-free drug use. While the country treats the possession of illicit drugs for personal use as an administrative offense, it nonetheless summons apprehended drug users to “dissuasion” commissions composed of doctors, social workers, and lawyers. These commissions assess a drug user’s health, consumption habits, and socioeconomic circumstances before using arbitrator-like powers to impose appropriate sanctions.

These sanctions depend on the nature of the offense. In less severe cases, users receive warnings, small fines, or compulsory drug education. Severe or repeat offenders, however, can be banned from visiting certain places or people, or even have their property confiscated. Offenders who fail to comply are subject to wage garnishment.

Throughout the process, users are strongly encouraged to seek voluntary drug treatment, with most penalties waived if they accept. In the first few years after decriminalization, Portugal made significant investments into its national addiction and mental-health infrastructure (e.g., methadone clinics) to ensure that it had sufficient capacity to absorb these patients.

This form of decriminalization is far less radical than its North American proponents assume. In effect, Portugal created an alternative justice system that coercively diverts addicts into rehab instead of jail. That users are not criminally charged does not mean they are not held accountable. Further, the country still criminalizes the public consumption and trafficking of illicit drugs.

At first, Portugal’s decriminalization experiment was a clear success. During the 2000s, drug-related HIV infections halved, non-criminal drug seizures surged 500 percent, and the number of addicts in treatment rose by two-thirds. While the data are conflicting on whether overall drug use increased or decreased, it is widely accepted that decriminalization did not, at first, lead to a tidal wave of new addiction cases.

Then things changed. The 2008 global financial crisis destabilized the Portuguese economy and prompted austerity measures that slashed public drug-treatment capacity. Wait times for state-funded rehab ballooned, sometimes reaching a year. Police stopped citing addicts for possession, or even public consumption, believing that the country’s dissuasion commissions had grown dysfunctional. Worse, to cut costs, the government outsourced many of its addiction services to ideological nonprofits that prioritized “harm reduction” services (e.g., distributing clean crack pipes, operating “safe consumption” sites) over nudging users into rehab. These factors gradually transformed the Portuguese system from one focused on recovery to one that enables and normalizes addiction.

This shift accelerated after the Covid-19 pandemic. As crime and public disorder rose, more discarded drug paraphernalia littered the streets. The national overdose rate reached a 12-year high in 2023, and that year, the police chief of the country’s second-largest city told the Washington Post that, anecdotally, the drug problem seemed comparable to what it was before decriminalization. Amid the chaos, some community leaders demanded reform, sparking a debate that continues today.

In North America, however, progressive policymakers seem entirely unaware of these developments and the role that treatment and coercion played in Portugal’s initial success.

In late 2020, Oregon embarked on its own drug decriminalization experiment, known as Measure 110. Though proponents cited Portugal’s success, unlike the European nation, Oregon failed to establish any substantive coercive mechanisms to divert addicts into treatment. The state merely gave drug users a choice between paying a $100 ticket or calling a health hotline. Because the state imposed no penalty for failing to follow through with either option, drug possession effectively became a consequence-free behavior. Police data from 2022, for example, found that 81 percent of ticketed individuals simply ignored their fines.

Additionally, the state failed to invest in treatment capacity and actually defunded existing drug-use-prevention programs to finance Measure 110’s unused support systems, such as the health hotline.

The results were disastrous. Overdose deaths spiked almost 50 percent between 2021 and 2023. Crime and public drug use became so rampant in Portland that state leaders declared a 90-day fentanyl emergency in early 2024. Facing withering public backlash, Oregon ended its decriminalization experiment in the spring of 2024 after almost four years of failure.

The same story played out in British Columbia, which launched a three-year decriminalization pilot project in January 2023. British Columbia, like Oregon, declined to establish dissuasion commissions. Instead, because Canadian policymakers assumed that “destigmatizing” treatment would lead more addicts to pursue it, their new system employed no coercive tools. Drug users caught with fewer than 2.5 grams of illicit substances were simply given a card with local health and social service contacts.

This approach, too, proved calamitous. Open drug use and public disorder exploded throughout the province. Parents complained about the proliferation of discarded syringes on their children’s playgrounds. The public was further scandalized by the discovery that addicts were permitted to smoke fentanyl and meth openly in hospitals, including in shared patient rooms. A 2025 study published in JAMA Health Forum, which compared British Columbia with several other Canadian provinces, found that the decriminalization pilot was associated with a spike in opioid hospitalizations.

The province’s progressive government mostly recriminalized drugs in early 2024, cutting the pilot short by two years. Their motivations were seemingly political, with polling data showing burgeoning support for their conservative rivals.

The lessons here are straightforward. Portugal’s decriminalization worked initially because it did not remove consequences for drug users. It imposed a robust system of non-criminal sanctions to control addicts’ behavior and coerce them into well-funded, highly accessible treatment facilities.

Done right, decriminalization should result in the normalization of rehabilitation—not of drug use. Portugal discovered this 20 years ago and then slowly lost the plot. North American policymakers, on the other hand, never understood the story to begin with.