Managing marijuana: How a Mass. lab makes sure it’s safe for patients

3/20/17–Medical marijuana has been legal in Rhode Island for a decade, but the state doesn’t require the drug to be tested before patients use it. In Massachusetts, where testing is required, Eyewitness News visited Proverde Laboratories to find out how the process works, what scientists look for, and if this testing will be in Rhode Island soon. Proverde Laboratories tests the drug in all its forms, from the plant to oils and edibles. Read