Original Article Feb 4, 3:12 AM EST Ex-deputy has peace officer certification revoked over drug test TUCSON, Ariz. (AP) -- A former Pima County sheriff's deputy recently had his peace-officer certification revoked after testing positive for cocaine during a random drug screening while still a member of the force. The Jan. 18 revocation stems from a November 2004 incident in which Isiah Permelia Jr. was selected for random testing, according to a document from the Arizona Peace Officers Standards and Training Board. Permelia, 49, said Friday that he has never used any illegal drugs and does not understand why he tested positive for cocaine in several instances. Permelia, an 18-year-veteran, had previously undergone drug testing numerous times while serving as a deputy, each time coming up clean, according to the document. Permelia, a member of the Fugitive Investigative Strike Team, reported to Tucson Occupational Medicine that day in 2004, and urine and hair samples were taken. The document said his urine tested negative but Permelia's hair sample showed that he had used cocaine. The drug was later found in his duty car during a search and Permelia was suspended without pay in December 2004 and retired from the sheriff's department that same month. Information from: Arizona Daily Star, http://www.azstarnet.com