A former security guard at the Ottawa Hospital was sentenced to four years in prison for sexual offences against two female psychiatric patients at the hospital's Civic campus.

Clinton Russell, 43, was found guilty of charges of sexual exploitation and sexual assault in the two incidents, which occurred in 2010 and 2011.

The two incidents both took place at the hospital and involved adult patients with intellectual disabilities. In both cases Russell forced the victims to perform oral sex acts in exchange for small amounts of cash.

Clinton Russell (Oct. 18, 2013)

Clinton Russell, 43, was sentenced to four years after being convicted of sexual exploitation and sexual assault. (Laurie Fagan/CBC)

Crown prosecutor Suzanne Schriek said she thought the judge's verdict and sentence was "well reasoned."

"What she made clear is that society will not tolerate this kind of predatory behaviour by persons in situations of trust and authority. And particularly dealing with vulnerable persons," she said.

Victims with disabilities find it difficult to come forward, says mother  

The mother of one of the victims said her daughter decided to press charges because she wanted to make sure this didn't happen to others like her.

"A lot of people with disabilities or special needs don't come forward because a lot of people don't believe them," she said.

The mother said she had told her daughter she could trust security guards and policemen, but said since the incident she no longer trusts security guards.

In addition to his prison sentence, Russell will also have to provide a DNA sample and will be registered as a sex offender.

Russell, who has denied the charges, told the court he would not be making any comment before sentencing.

His wife was in court but declined to comment.

Russell will appeal both convictions, his lawyer said.