As cannabis becomes more prominent in North America, government oversight on heavy metal contamination is becoming more prevalent, too. So what can be done on the analytical front?
Marijuana could soon become legal in every US state, if Congress approves the new "420" bill.
Lab-shopping for 'preferable' results, and a lack of strict regulations and contaminant limits, mean that Oregon's cannabis testing regime is in need of a shake-up.
New study finds that prescribing medical cannabis regular users of benzodiazepine may reduce the number of patients using the drug, patients also reported a better quality of life.
Batches of marijuana being sold by state dispensaries and provisioning centers are failing to meet state standards.
Cannabis and its compounds could soon become less dangerous, in the eyes of the UN.
New York and New Jersey race to become the 11th state to legalize recreational cannabis in the US.