Key Takeaways
- In Portugal, following drug decriminalization in 2001, overdose deaths decreased by 80% from 80 in 2001 to 16 in 2012
- Portugal's overdose mortality rate fell from 28 per million in 2001 to 6 per million by 2019 after decriminalization
- In Oregon post-Measure 110 decriminalization (2021), fentanyl overdose deaths rose 44% from 2020 to 2021 but treatment referrals increased via deflection programs
- Portugal's drug treatment entry rates increased 147% from 1,400 in 2001 to 3,463 in 2008 post-decriminalization
- Post-decriminalization, Portugal saw 18% of problem drug users in treatment by 2019 vs 6% pre-2001
- Oregon Measure 110 funded $302M in behavioral health grants, leading to 6,000+ treatment beds by 2023
- Drug possession arrests in Portugal dropped 60% from 14,000 in 2000 to 5,000-6,000 annually post-2001 decriminalization
- Post-decriminalization Portugal saw lifetime criminal records for drugs fall 99% for youth under 18
- Oregon post-Measure 110 (2021): personal possession arrests declined 65% from 2020 levels
- In Portugal post-decriminalization, healthcare spending on drug treatment rose from €12M to €75M annually by 2019, saving €18,000 per avoided HIV case
- Oregon Measure 110 reallocated $1.4B cannabis tax over 10 years to addiction services
- Portugal post-2001: criminal justice drug costs fell €18M/year, offset by €10M treatment rise, net savings
- Lifetime drug use prevalence in Portugal remained stable at 12% adults post-2001 decriminalization vs rising EU trends
- Portugal youth (15-24) cannabis use steady at 10-12% 2001-2019 post-decrim
- Oregon post-Measure 110: adult past-year drug use unchanged at 35%
Portugal's decriminalization reduced overdoses and disease, but Oregon struggled with implementation.
Criminal Justice Impacts
Criminal Justice Impacts Interpretation
Drug Use Prevalence and Patterns
Drug Use Prevalence and Patterns Interpretation
Economic Costs and Savings
Economic Costs and Savings Interpretation
Overdose and Mortality Rates
Overdose and Mortality Rates Interpretation
Treatment Access and Utilization
Treatment Access and Utilization Interpretation
How We Rate Confidence
Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.
Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.
AI consensus: 1 of 4 models agree
Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.
AI consensus: 2–3 of 4 models broadly agree
All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.
AI consensus: 4 of 4 models fully agree
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
Julian Richter. (2026, February 13). Drug Decriminalization Statistics. Gitnux. https://gitnux.org/drug-decriminalization-statistics
Julian Richter. "Drug Decriminalization Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/drug-decriminalization-statistics.
Julian Richter. 2026. "Drug Decriminalization Statistics." Gitnux. https://gitnux.org/drug-decriminalization-statistics.
Sources & References
- Reference 1CATOcato.org
cato.org
- Reference 2OREGONoregon.gov
oregon.gov
- Reference 3TRANSFORMDRUGStransformdrugs.org
transformdrugs.org
- Reference 4CDCcdc.gov
cdc.gov
- Reference 5EMCDDAemcdda.europa.eu
emcdda.europa.eu
- Reference 6DRUGPOLICYdrugpolicy.org
drugpolicy.org
- Reference 7VCHvch.ca
vch.ca
- Reference 8SICADsicad.pt
sicad.pt
- Reference 9CATDIRcatdir.loc.gov
catdir.loc.gov
- Reference 10PUBLICHEALTHpublichealth.oregon.gov
publichealth.oregon.gov
- Reference 11EUDAeuda.europa.eu
euda.europa.eu
- Reference 12OREGONLIVEoregonlive.com
oregonlive.com
- Reference 13DRUGPOLICYFACTSdrugpolicyfacts.org
drugpolicyfacts.org
- Reference 14NCBIncbi.nlm.nih.gov
ncbi.nlm.nih.gov
- Reference 15NIDAnida.nih.gov
nida.nih.gov
- Reference 16GATEWAYgateway.euro.who.int
gateway.euro.who.int
- Reference 17OPBopb.org
opb.org
- Reference 18ECec.europa.eu
ec.europa.eu
- Reference 19DPHHSdphhs.mt.gov
dphhs.mt.gov
- Reference 20DRUGPOLICYALLIANCEdrugpolicyalliance.org
drugpolicyalliance.org
- Reference 21OREGONHEALTHNEWSoregonhealthnews.com
oregonhealthnews.com
- Reference 22STATESMANJOURNALstatesmanjournal.com
statesmanjournal.com
- Reference 23PORTLANDOREGONportlandoregon.gov
portlandoregon.gov
- Reference 24BCSTATSbcstats.shinyapps.io
bcstats.shinyapps.io
- Reference 25KOINkoin.com
koin.com
- Reference 26DGPENdgpen.pt
dgpen.pt
- Reference 27PORTLANDportland.gov
portland.gov
- Reference 28BALLOTPEDIAballotpedia.org
ballotpedia.org
- Reference 29VPDvpd.ca
vpd.ca






