WOODSTOCK, Ga. -- A woman is suing the city of Woodstock and a narcotics officer she said raped her at a police station. She said the incident happened after she agreed to work as a confidential informant after a drug arrest.

The allegations were laid out in a federal lawsuit that Channel 2 Action News reporter Tom Regan obtained. It was filed Wednesday in the U.S. district court.

Because there are no criminal charges filed, Channel 2 is withholding the name of the officer.

“He told me he was going to put me in jail if I didn’t cooperate,” said the alleged victim.

A 47-year-old woman asked Channel 2 Action News to conceal her identity as she described her account of rape and sexual assault by a former Woodstock narcotics officer. She said the incident happened the night of Jan. 28, 2008 inside a room at the police station.

“He asked me to lift up my shirt at the beginning of the room. And he took me to the back of the room and I knew...I knew just what was going to happen,” she said.

When interviewed by the Georgia Bureau of Investigation, she said the officer told her repeatedly that ‘she owed him’ for not arresting her a second time on drug charges.

“I asked him, ‘Why are you doing this?’ He said I needed to remember where I was at and that I could go to jail,” said the alleged victim.

The officer named in the lawsuit denied the allegations when questioned by GBI investigators. The report concluded there was no DNA evidence that an assault took place.

But the lawyer of the alleged victim questioned why the officer resigned the day an internal investigation was to begin.

“I think he quit the day he was supposed to be polygraphed. To me, that’s significant,” said attorney Ralph Goldberg.

The Woodstock city attorney told me the lawsuit is without merit and there is no physical evidence to support the allegations.

Cherokee County district attorney Gary Moss said, while there is insufficient evidence to bring indictments in the case, the case remains active.