Cannabis strength more than doubles in 20 years, says report

THE strength of cannabis has more than doubled in Ireland in the last 20 years, according to a new report.

The study says the potency of cannabis resin the most common form of the drug in Ireland has almost doubled, while the strength of herbal cannabis, an increasingly available form of the drug, has jumped more than fourfold.

Statistics provided by Irish authorities to the European Centre for Drugs and Drug Addiction (EMCDDA) shows the concentration of THC, the primary active constituent in cannabis, jumped from: