Harvey-Clemons, the Bulldogs' defensive MVP in spring practice, was not arrested on May 15 when campus police investigated possible marijuana use in his dorm room at Vandiver Hall.
However, Harvey-Clemons and tight end Ty Flournoy-Smith -- whom coach Mark Richt said last week is transferring from the program -- admitted to the investigating officer that they had "smoked a blunt," according to a University of Georgia police incident report obtained by ESPN.com's David Ching.
The school confirmed Tuesday that Harvey-Clemons will be suspended for the season opener against Clemson on Aug. 31.
The reporting officer said both players exhibited signs of marijuana ingestion, including bloodshot eyes with dilated pupils that were slow to respond to light, according to the incident report. Smith also had a digital scale, which he told the officer he used "to make sure what he was buying was accurate."
The officer searched both players' bedrooms and the common area in the dorm and found no additional marijuana. The players told police no more of the drug was present in the dorm, and Harvey-Clemons showed the officer a clear cellophane bag that he said originally contained the drug. According to the report, "there was odor of marijuana present in the bag and a barely visible flake of possible marijuana inside."
The players were not charged with marijuana possession, said UGA police chief Jimmy Williamson, because "there has to be more than that to test."
Williamson said he reported the incident to Georgia's coaching staff the next day.
Harvey-Clemons, a former five-star recruit, appeared in 14 games last season and registered a career-high three tackles against Florida Atlantic. After a strong performance this spring, Harvey-Clemons was slated to be one of the Bulldogs' starting safeties in 2013.
ESPN.com's David Ching and Chris Low contributed to this report.