A Dallas police officer has been fired and arrested on a charge of sexually assaulting a citizen while on duty.
A Dallas police statement said an investigation led to enough evidence to arrest Officer Jeffery Thorn on the first-degree felony sexual assault charge Tuesday.
According to a police report, Thorn forced a woman to perform oral sex late Thursday night. The police department's Public Integrity Unit began the investigation Friday.
The department said another officer noticed Thorn's squad card idling for some time and went to investigate.
"There are cops everywhere around this city," Assistant Chief Floyd Simpson said. "There are some you can see, there are some that you can't see. And in this particular case, unfortunately, Mr. Thorn was in an area where we had some covert operations."
Thorn was booked Tuesday into the Dallas County jail. Jail records show no attorney nor bond setting for Thorn.
Thorn was hired in December 2008 and was on probation as a new officer with the force.