Dean Dempster, a former Greater Manchester Police officer, has been sentenced to nine years in prison for sexually assaulting a six-year-old girl while on duty in December 2023. During the incident, Dempster took the child to a room away from other officers, turned off his body-worn camera, and sexually assaulted her. Following his arrest, extensive investigations revealed thousands of indecent images on his devices, including over 100 categorized as the most serious offenses. Dempster pleaded guilty to multiple charges, including sexual assault and making child abuse images, and was ordered to register as a sex offender for life. Prosecutors highlighted the significant harm caused to the victim and the erosion of trust between the police and the community. The case has raised concerns about police accountability and community safety in Oldham.