A Brampton high school teacher and wrestling coach who has faced three previous allegations that he sexually touched students during his 26-year-career has been charged with sexual exploitation of a student.

Turner Fenton Secondary School teacher Richard Knill, 53, of Milton, was charged this week by Peel Regional Police. He faces one charge of sexual exploitation in relation to an alleged relationship with a student.

According to the Ontario College of Teachers website, Knill was disciplined by the College in 2003 after he was found guilty of professional misconduct for sexually touching a female student 17 years ago.

In November 2000, while he was teaching at Bramalea Secondary School, he was removed from the classroom by the Peel District School Board and charged by police, with sexually touching a student in his car. He was found not guilty by the courts, said the College disciplinary decision.

However, a disciplinary hearing followed and he was found guilty of professional misconduct for the incident.

In November 2003, the College handed Knill a three-month licence suspension and required him to undergo counselling on “boundary issues” and see a psychiatrist. The College ruled if a psychiatrist determined he posed no risk to students or the school community, he would be allowed to return to the classroom and the suspension would not be levied.

On Nov. 26, 2003, his standing with the College was changed to “good standing — subject to terms, conditions or limitations.”

Four months later, on May 20, 2004 his status with the College was reinstated to “good standing.”

The Peel District School Board allowed him to return to the classroom that same month.

The College’s disciplinary decision said it wasn’t the first such allegation. Knill was charged in 1992 after two students told police he had kissed them while he was a teacher at Meadowvale Secondary School. He was found not guilty by the courts in that case, too.