A former Calgary police officer is facing more child pornography charges after a year-long investigation into a woman's allegations that she was criminally harassed by her ex-boyfriend.

The woman in her 50s also alleges she was sexually assaulted while in the relationship. 

During the investigation, police say they found information that the suspect had been accessing child pornography.

Stephen Huggett, 58, was arrested last Friday and police obtained a warrant to search his Willow Park home.

He now faces numerous charges, including extortion, criminal harassment and possession of child pornography.

The former police officer was sentenced to nine months in jail in 2009 after pleading guilty to one count of possessing child pornography.