CHICAGO (CBS) — The former deputy police chief of Markham has been charged with violating the civil rights of a victim through acts that included aggravated sexual abuse.

Prosecutors say Tony DeBois was arrested this morning for the alleged crime, which happened in 2010.

READ MORE: Northwestern University Bans All Social Activities At Campus Fraternities Until At Least Mid-October After Reports Of Drugging

The indictment alleges that while acting in his official capacity as Markham deputy police chief, DeBois violated the victim’s right to bodily integrity by acts that included aggravated sexual abuse.

DuBois was arrested at this home Thursday by FBI agents without incident. DeBois was the deputy chief of the Markham Police Department when the alleged crime occurred on Sept. 23, 2010.

DeBois served as deputy chief between 2008 and approximately 2011, and he was also the Markham Police Department’s head of internal affairs between 2007 and approximately 2011, prosecutors said. In 2011, he became Markham’s inspector general until sometime in 2012.

READ MORE: First There Were Reports Of Thefts, Now Park Ridge Moves To Replace Rusty, Insecure Mail Box

DeBois began his law enforcement career with the former Chicago Housing Authority Police Department in the 1990s, and he was a police officer in south suburban Harvey from 1999 to 2007, when he joined the Markham Police Department.

He denied the charges.

“I’ve been a police officer a long time. And why would I wait until now to become a criminal?” he told reporters after pleading not guilty and being released on his own recognizance.

MORE NEWS: American Red Cross Seeking Blood Donations Amid Emergency Blood Shortage

Thursday’s charges provided few details, but his attorney said they likely stem from someone police arrested.