Chemist Emily Hoffman holds up a vial with a dissolved cannabis-infused gummy inside a lab at Legend Technical Services in St. Paul on Oct. 7, 2025. Create an account or log in to save stories. Thanks for liking this story! We have added it to a list of your favorite stories. One of Minnesota's longstanding cannabis testing labs has ended its cannabis and hemp testing program following regulatory troubles. Legend Technical Services announced this week it has shut down its cannabis testing program.