A Colombian national police officer who was part of an elite unit that worked closely with U.S. anti-narcotics agents has pleaded guilty to charges he betrayed the Drug Enforcement Administration to the same traffickers they were jointly fighting.

A Colombian national police officer who was part of an elite unit that worked closely with U.S. anti-narcotics agents has been extradited to Miami to stand trial on charges he betrayed the Drug Enforcement Administration to the same traffickers they were jointly fighting.