That night, Oct. 16, 2008, the woman didn't know the name of the officer.
But the police Internal Affairs Bureau had a hunch:
Officer Thomas Tolstoy was immediately taken off the street.
"Despite the lack of photo identification at the scene, there was other information that caused us to narrow the scope," said Internal Affairs Chief Inspector Anthony DiLacqua. "We had evidence presented to us that gave us reason to look at [Tolstoy] more closely than other officers."
Women allege abuse
Tolstoy's alleged victim, "Naomi," is an intensely private 24-year-old woman.
She has never been charged with or convicted of a crime. The Daily News convinced her to talk about the night she says she wants to forget.
At her request, the newspaper agreed to use a false name - Naomi - to protect her privacy and because she's terrified of retaliation. She has had so many threatening phone calls - telling her not to talk - that she has repeatedly changed her phone number, she said.
She said she went to the hospital after the assault simply to "get checked out."
"I felt nasty after it," she said with a grimace. "I didn't know where his hands had been. I felt like with the force he used, like he scratched me."
Naomi is one of at least three women who say Tolstoy fondled, groped or sexually violated them during drug raids.
Lady Gonzalez, 29, of Kensington, and Dagma Rodriguez, 33, of West Kensington, have alleged that Tolstoy stroked their breasts during raids. The Daily News reported their allegations on June 1. Videos of their accounts were posted on the Daily News Web site at philly.com.
None of the three women has a criminal record. The women don't know each other and spoke with the Daily News independently only after reporters tracked them down.