One of Province’s Largest Grow-ops Shutdown in Stettler

Calgary…A joint investigation between ALERT and Stettler RCMP has uncovered one of the largest illegal marihuana grow-ops in the province. With a plant count of 3,284, the grow-op has an estimated street value of nearly $4 million.

ALERT’s Green Team, an integrated unit consisting of Calgary Police Service and RCMP members, dismantled the grow-op on October 22 at a Stettler rural home off of Highway 12. Stettler RCMP had responded to the residence the previous night after receiving a call of a suspicious person.

The grow-op was located inside a barn on the property and serviced by an industrial sized generator. The barn housed a complex three-stage grow operation with 3,284 marihuana plants and approximately three kilograms of dried bud that had recently been harvested.

Police seized two pick-up trucks equipped with hidden compartments located in the slip tanks. These are believed to be used for smuggling drugs.

The grow-op is the one of the largest indoor grow-ops ever encountered by ALERT’s Green Team. Previously, ALERT seized 2,233 plants from a Parkland County home in December 2012, while the largest outdoor grow-op saw 3,854 plants seized in Drumheller in August 2010.

Two people were arrested at the Stettler home. Kin Wa Au Yeung, a 53-year-old man, and Dan Wang, a 35-year-old woman, are facing charges relating to drug trafficking and illegal production. Neither of the accused possessed a valid Health Canada grow-op license.

To report suspicious activity or a suspected marihuana grow operation in your community, contact police or Crime Stoppers at 1-800-222-8477 (TIPS). For information on how to spot a marihuana grow operation, visit

ALERT was established and is funded by the Alberta Government and is a compilation of the province’s most sophisticated law enforcement resources committed to tackling serious and organized crime. Members of Alberta Sheriffs, Calgary Police Service, Edmonton Police Service, Lethbridge Regional Police Service, Medicine Hat Police Service, and RCMP work in ALERT.