> You can’t retrain dogs when it comes to marijuana,” adds James Woodford, a forensic chemist who created and patented the odor of cocaine that serves as the in

> You can’t retrain dogs when it comes to marijuana,” adds James Woodford, a forensic chemist who created and patented the odor of cocaine that serves as the industry standard when it comes to training dogs to sniff out the substance. That sounds like a fun job... I wonder how he did his research?