AURORA, Colo. (CBS4) – A case worker with a company that monitors people on probation is accused of sexually assaulting one of its clients.

Rickey Servine Jr., 35, faces charges of sex assault and false imprisonment. Servine works for Rocky Mountain Offender Management Systems, which is known as RMOMS.

Police say the reported victim was on probation for a minor crime and met Servine on Aug. 27 when he helped her with some paperwork. The next day, police say she returned on his advice.

As she was leaving, police say Servine followed her out of the office and engaged in conversation as they went into a stairwell in the building. It was there the woman says the violent and aggressive assault took place.

Rickey Servine Jr. (credit: Aurora Police)

Authorities fear Servine may have similarly attacked other people but they might have been keeping silent about it.

“It’s very possible that he’s taking advantage of these women in a vulnerable situation simply by being on probation,” said Officer Frank Fania with Aurora police.

Russ, an RMOMS who told CBS4 he didn’t want his face on camera, said he has been a client of RMOMS for a year and a half and found the situation to be the “ultimate betrayal.”

“You trust in your case workers because these are people you look up to. And if you’re in trouble by any means, it’s a violation. It’s not right,” he said.

Servine has a criminal record. CBS4 wanted to ask RMOMS about that and their hiring practices, but they refused to provide a comment when CBS4 asked and never returned repeated phone calls.

RMOMS performs probation-related services such as ankle monitor and blood or alcohol testing.

Anyone with more information about the case, or anyone who thinks they might be a victim of Servine’s, is asked to contact Aurora police at (303)739-6065.