Air Force to discharge 30 Tinker airmen for possession of synthetic marijuana

Spice is a mixture of herbs sprayed with chemicals that mimic THC, the active ingredient in marijuana. It produces a high when smoked. Spice first appeared in Europe, and its use has spiked in the U.S. over the past few years.

The Drug Enforcement Administration temporarily banned the drug last year, and it was permanently added to the federal government's list of banned substances in March.

The U.S. Air Force's Office of Special Investigations recently finished an investigation that began after the drug was banned. Investigators found 30 airmen who possessed or used the drug ranging in rank from airman to senior airman.