Edmonton prison guard charged with sex assault against female guard

Police say the man also faces a charge of assault with a weapon against the woman.

The alleged crimes happened at the maximum-security Edmonton Institution before 2017, when the Correctional Service Canada alerted police.

A lawsuit filed last year by four female guards claims they suffered prolonged abuse from male colleagues that included sexual taunts, waterboarding and pepper spray left on a toilet seat.

Graham Trevor Spilsbury, who is 50, was released on a promise to appear in court at a later date.

Police say they cannot release further details as they continue to investigate other allegations.

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