Two people have been arrested and are facing drug trafficking charges after police busted a medicinal marijuana grow-up.

On June 21, an Alberta Law Enforcement Response Team (ALERT) investigation dismantled a 107-plant grow-op in the southwest community of Silverado.

Investigators say the licensed grow-op was fuelling the accused's marijuana drug trafficking operation.

The investigation took six weeks and investigators witnessed behaviour they say is consistent with drug trafficking.

Evidence consistent with drug trafficking was also seized at the home, including scoresheets, scales, packing materials and more than 12 cellphones.

In addition to the 107 marijuana plants, investigators also seized 139 grams of packaged marijuana, a loaded handgun that had previously been reported as stolen, a Taser, a money counting machine and $1,100 in cash deemed to be proceeds of crime.

A 41-year-old man and 30-year-old woman were arrested in the home and face a combined total of 20 drugs and weapons-related charges.