Former Butner Public Safety Lieutenant Daniel Parrott was fired in May of 2010.
A month earlier, Parrott was checking on a motorist who had car trouble on Interstate 85. The motorist was off-duty Highway Patrol Captain James Williams.
After realizing who Williams was, Parrott consulted with a superior officer and did not arrest Williams, but instead took him to a local hotel.
During a later investigation by the Butner Public Safety Department, Major Danny Roberts interviewed Parrott about the encounter.
At an appeals hearing Wednesday, Roberts quoted Parrott's recollection of his encounter with Trooper Williams.
"I asked him if he had been drinking. And, basically, he advised me that he consumed alcohol earlier in the evening," Roberts said.
Major Roberts said he interviewed everyone involved in the incident several times because of constantly changing and conflicting information.
Parrott, the superior officer and a major - who had also been consulted - were all fired.
Parrott appealed his firing and Wednesday's hearing at the state Office of Administrative Hearings was the first stop in that process.
Trooper Williams, who was never charged with DWI, was also fired and is also appealing.
He has been subpoenaed in Parrott's case and is expected to testify.