A Winnipeg teacher previously accused of voyeurism and a host of other offenses has been charged with sexually assaulting and sexually exploiting a former student.

Matthew James Mousseau, 37, was charged earlier this month with sexual assault and sexual exploitation. He was detained in custody.

According to police, the investigation began in October when a woman came forward to police.

The survivor said that between May 2019 and August 2020, when she was a teenager, she attended an afterschool program in Seven Oaks School Division.

She alleged that the student support worker in the program was an adult male who groomed her into a sexually exploitative relationship.

Mousseau was previously charged with voyeurism, sexual assault and child pornography in October after several videos of children and adults “in various stages of undress” were found in the family’s locker room at Seven Oaks Pool.

Friday’s charges involved a separate student from the October charges, according to Cont. Dani McKinnon.

“The survivor in this matter listened to a previous press release that we issued in October involving this individual and has the courage to come forward to make this report,” she said.

Mousseau worked as a teacher in several school divisions until May 2024, but is no longer teaching, police said.

None of the allegations against Mousseau have been tested in court.

-With files from CTV’s Danton Unger