Complaint against Silent Pool’s CBD-infused gin upheld 20th January, 2021 by Melita Kiely Industry watchdog the Portman Group has upheld a complaint against Silent Pool Distillers’ CBD-infused gin for its links to illicit drugs and therapeutic qualities. A complaint against Silent Pool’s Colorado High CBD-infused gin has been upheld A member of the public complained about the product to the Portman Group, the social responsibility and regulatory body for alcohol in the UK. The complaint alleged Silent Pool Distiller’s CBD-infused gin, Colorado High, breached two rules, one that prohibits associating alcohol with illegal drugs and a second that states there should be no link with therapeutic qualities.