An appeal on the sentence has been filed in the case of Bonnie McLachlan who was recently found guilty of sexually exploiting a 15-year-old student two decades ago.

McLachlan, now 52, was given an 18-month sentence to be served in the community.

Crown prosecutors have asked the Saskatchewan Court of Appeal to review the sentence.

They say the sentence was not enough considering the seriousness of the offence.

McLachlan was tried by a jury which gave a verdict of guilty on April 19. The judge overseeing the trial imposed the sentence five days later.

She was charged after the victim came forward with a complaint as an adult. During her testimony, McLachlan denied having sex with the teen during the 1993-94 school year.

Her husband testified in the trial saying his wife has never been unfaithful.

The victim testified that a sexual relationship had developed between the two and that McLachlan was the one who initiated it.

He said they were first intimate in her car after he had finished a workout at a local gym.