This was not medical. These are Vietnamese organized crime rings that most likely used to operate in Canada before 911. In the past few years several groups of Vietnamese growers have been busted in the greater Seattle, WA area.

There was a huge group that owned a Hydro store that would front out all of the equipment to start up a grow house, and even had a real estate agent to find good grow houses. This hydro store even sold clones and let people dump all of their "grow trash" in their dumpster.