Tennessee- The state trooper accused of receiving oral sex from a porn actress during a traffic stop had been the subject of a complaint from a female motorist in 2000, the state safety commissioner said this morning.

Trooper James Randy Moss was never disciplined in that incident. Safety Commissioner Dave Mitchell said he wants that case reviewed, but he did not disclose further details.

Meanwhile, Mitchell said officials with the Safety Department have reviewed the in-car videotape of the more recent traffic stop. “What was in the video was very disturbing,” he said, and added that the investigation has revealed evidence of criminal conduct.

He said the Safety Department, the parent agency of the Tennessee Highway Patrol, is reviewing other traffic stops and videos from Moss’ patrol car. Mitchell said he may want to re-interview the female motorist from the 2000 stop, if investigators can find her.

“We’re looking at another incident where I want to look at the activity of a vehicle stop,” Mitchell said. “To my knowledge, there was a complaint filed and there was no action taken against the trooper. And I’m re-looking at this situation.”

Moss, who has been with the department since 1997, is on administrative leave facing a criminal investigation involving a traffic stop in Wilson County on May 7.

The porn actress, Justis Ellen Richert, 21, lives in Knoxville and goes by the stage name Barbie Cummings. She placed a narrative and an explicit video from the encounter on her blog, suggesting the sex was in exchange for the trooper not charging her for possible drug possession.

Mitchell said investigators have linked Moss to the traffic stop, but wouldn’t go into details.

He said investigators were making an initial visit today to Wilson County District Attorney Tommy Thompson to discuss the case.

Mitchell took over as the safety commissioner in January. He replaced interim Commissioner Gerald Nicely, who spent a year in the post following a housecleaning of the patrol’s top leadership. That followed a series of problems in the department exposed by The Tennessean, including criminal activity by officers, ticket fixing, cronyism and a culture that turned a blind eye when its own officers got in trouble.

Mitchell said the department has changed and is rooting out problems. He pointed to the fact the recent complaint against Moss came from an anonymous tip from an employee.

“I have established a zero-tolerance policy for serious misconduct,” Mitchell said. “I’m going to be fair and aggressive.”