A former Montreal police officer pleaded guilty Thursday to a string of sexual assaults.

Benoit Guay, 34, faced 22 charges, including three charges of sexual assault with a weapon as well as uttering death threats and forcible confinement.

The charges related to attacks on at least seven victims ranging in age from 15 to 20 that happened in municipalities north of Montreal between May 2004 and July 2005.

In Laval Thursday, the court decided that sentencing arguments for Guay will be heard in May.

Guay has been behind bars since he was arrested in January 2006.

The Crown attorney says he'll ask that Guay, who lost his job as a police officer when he pleaded guilty Thursday, be declared a dangerous offender.