LONDON – A confiscated video has led London police to lay three sexual assault charges for incidents that happened in Niagara in 2009 and 2011.

However police are still trying to identify the last remaining female victims.

The investigation was launched on Feb. 8 and centered on a man who allegedly had a video that could be evidence of a criminal offence. During the investigation, police were able to obtain the video, which led to five charges: three counts of sexual assault (adult females) and two counts of voyeurism.

Police say it's believed the alleged offences occurred in the Niagara and St. Catharines area between 2009 and 2011.

London Police Det.-Insp. Kevin Heslop said that although the accused was first charged earlier in month, it was only recently, as late as Thursday, that they learned the incidents occurred in Niagara.

Investigators have identified two of the three victims, though the identity of one still eludes them, he said.

The investigation concluded with another charge, obstruct justice, being laid.

Charged is Robert Douglas Barber, 26.

Barber is an officer with the Woodstock Police having joined the service in January 2015. Prior to that he was a special constable at Western University in London.

Anyone with involvement with Robert Barber during this time frame or anyone with information in relation to this investigation is asked to call the London Police Service at 519-661-5670.