Measuring BC’s Drug Supply: What Drug Checking Can Reveal About Risks, Trends and Policy

Publications:

Tobias, S., Grant, C., Lysyshyn, M., Roux, P., Wood, E., Kerr, T., & Ti, L. (2026a). Risk reduction behaviours following the detection of unexpected drugs through community drug checking. Harm Reduction Journal, 23:72. Available here.
Bird, J., Tobias, S., Grant, C., Lysyshyn, M., Tupper, K., Wood, E., Kerr, T., & Ti, L. (2025). Sharing drug checking results in a Canadian setting. International Journal of Drug Policy, 143, 104903. Available here.
Tobias, S., Guzman, S. M., Hein, J. E., & Ti, L. (2026b). Development and validation of a fentanyl quantification model for drug checking services. Drug and Alcohol Dependence Reports, 18, 100415. Available here.
Tobias, S., Bird, J., Guzman, S. M., Palis, H., Crabtree, A., Hein, J. E., Wood, E., & Ti, L. (2026c). Temporal and regional associations between fentanyl concentrations in the unregulated drug supply and drug-related mortality in BC. International Journal of Drug Policy, 150, 105200. Available here.
Tobias, S., Angelucci, J., Wood, E., & Ti, L. (2025). Novel adulterants in unregulated opioids and their associations with adverse events. Canadian Journal of Public Health, 116(3), 356–363. Available here.
Tobias, S., Ferguson, M., Palis, H., Burmeister, C., McDougall, J., Liu, L., Graham, B., Ti, L., & Buxton, J. A. (2024). Motivators of and barriers to drug checking engagement in British Columbia, Canada: Findings from a cross-sectional study. International Journal of Drug Policy, 123, 104290. Available here.

Media:

Research & Dialogue: Series 4, Volume 2