CANON CITY -- Prison staff intercepted a large quantity of prescription medication that arrived in the mail Friday at the maximum-security Colorado State Penitentiary in the East Canon Prison Complex here. Prison workers "intercepted a large quantity of Suboxone, which was sent through the U.S. Postal Service as 'privileged mail'. Per administrative regulation, staff are restricted from reading privileged mail, but do inspect the contents for contraband in the presence of the offender," said Mark Fairbairn, DOC spokesman. "When staff opened the envelope, they discovered approximately 70 pieces of Suboxone hidden within the pages inside the envelope. In the prison setting, reselling the drug would have an approximate value of $2,800," Fairbairn said. Suboxone is a prescription medicine that is used for treatment of opioid dependence. Fairbairn said although the envelope was stamped as legal mail, it did not actually come from an attorney's office. "Dangerous drugs pose a threat to the safety and security of our prison system. The introduction of drugs inside a facility can lead to serious assaults on other offenders and staff. Staff diligence during the search of the mail is to be commended," said Rick Raemisch, DOC executive director.