Federal prosecutors are asking a judge to revoke probation for a convicted drug dealer who allegedly tried to hide a gram of crack cocaine from police by swallowing it during a recent arrest.

Tyran C. Collins, 45, of 313 E. Locust St., Davenport, appeared for a hearing Friday morning in U.S. District Court, Davenport, regarding his probation.

Chief U.S. District Judge Robert Pratt sentenced Collins on Jan. 26, 2000, to 19 years and seven months in prison. Subsequent federal sentencing guideline changes for crack cocaine reduced Collins’ prison term to 17 years and six months.

Pratt reduced his sentence again on Nov. 1, 2011, to 12 years and seven months in prison and he was released on supervised probation two days later.

While on probation, he presented a urine sample to the Center for Drug and Alcohol Services in Davenport on Sept. 18 that tested positive for cocaine, although the same sample sent to a lab later tested negative, and he admitted on Sept. 20 to inhaling “one-half line” of cocaine, according to court records.

On Nov. 15, Collins was arrested at Rhythm City casino in Davenport after a drug investigation.

When officers approached Collins at the casino, he reached into his inner coat pocket and removed a gram of crack wrapped in a plastic bag and placed it in his mouth, according to his arrest affidavit.

Officers struggled with Collins and took him to the ground, ordering him to spit out the drugs, the affidavit stated.

Because of this arrest, he’s charged in Scott County District Court with drug possession/delivery, a Class C felony punishable in Iowa by up to 10 years in prison upon conviction. He also faces going back to federal prison to finish out his sentence stemming from the 2000 conviction.

He has to undergo substance abuse testing and treatment and was ordered to not consume alcohol as conditions of his federal probation.