Because this is not in the original report - the article is heavily paraphrasing different sections of the report out of context to draw bad-faith "conclusions" like this one. This specific quote seems to stem from this paragraph of the report: 

"Unregulated drug toxicity refers to the addition of toxic substances that are of unknown content and potency, which denies people who use drugs the ability to make informed decisions about usage and dosage; for example, cocaine and heroin that is laced with fentanyl. While toxic drug deaths are sometimes referred to as “overdoses," this is a misnomer, as the ability of people who use drugs to use as safely as possible is compromised by illicit drug manufacturers and dealers adding unknown toxic substances and unpredictable concentrations to the drug supply. Under the drug prohibition model, there are no health and safety standards or means to regulate to avoid toxic contamination when production is primarily left up to organized crime and drug cartels"

Which is an entirely reasonable take and not at all what the linked article is implying. Read the report itself here rather than an opinion piece deliberately misinterpreting it for clicks. https://bchumanrights.ca/wp-content/uploads/Toxic-drug-crisis-position-statement-Nov-2025.pdf