From The National Post Calgary Catholic school teacher charged with sex offences for alleged relationship with student CALGARY â€” Police in Calgary have charged a female teacher with sexually assaulting a teenager. Officers allege that Jennifer Mason, who is 30, started a relationship with the boy when he was 15 in August 2012. He was a student at the Catholic school, which has now suspended her from teaching. Police say they started an investigation last November after receiving a public tip about suspicious activity in a vehicle. Mason also faces charges of invitation to sexual touching, sexual interference and sexual exploitation by a person in a position of trust. She is to appear in court on Feb. 28.