Alert comprehensively updated to include updated intelligence and changes to content and design.

Addition of signposting to the Scottish Drugs Forum resource on rapid-onset overdoses.

The legal status section of this alert was updated in January 2025 to reflect amendments to the Misuse of Drugs Act (1971).

Inclusion of information on increasing detections in heroin and benzodiazepines.

Inclusion of post-mortem toxicology data.

Inclusion of information on new detections.

First published