Wicked GMP officer switched off bodycam on 999 call then subjected girl to depraved sexual assault

A depraved police officer has been jailed after he was caught sexually assaulting a girl under 10 during a call to her home.

PC Dean Dempster was called to a property in Oldham in 2023, but switched off his body-camera to carry out a sickening attack on the girl. He later took a picture of the abuse on his own phone.

The uniformed response officer and other cops were scrambled following reports of 'screaming and shouting' inside the family home.

Today (November 13), a sentencing hearing at Liverpool Crown Court was told how the 35-year-old took the girl to a room to ask her about what had happened, but instead molested her.

His young victim later demonstrated to another member of the family how Dempster, of West Didsbury, had pulled down her pyjamas and knickers and touched her genitals.

"He did this to me - I'm not lying," the girl told the family member, Liverpool Crown Court heard.

Prosecutor Vanessa Thomson said that when the girl was told about the importance of telling the truth, the girl said: "That's the truth. That's what he did to me."

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The subsequent police investigation into Dempster found he had a 'sexual interest in children' and before he had started his shift that day he had accessed websites after searching for 'girls in diapers and pull ups', 'girls in nice underwear' and 'little girls on the beach and pool'.

The following day, after he paraded on for duty, his inspector informed Dempster there had been a complaint about him concerning sexual touching of a child, the court heard.

He was put on restricted duties and told there was a 'gap' in his police body-cam footage.

When the officer made an 'unsolicited comment' alleging the girl had pulled her pants down when he asked her to lift her top to check for bruising, his inspector became suspicious and Dempster was arrested, said Ms Thomson.

The defendant's personal mobile phone was seized but analysis showed he had already 'systematically' deleted the contents and applications, the court was told. He had deleted an app called 'secret photos - KYMS' which allows users to store encrypted media. He also deleted other apps including Grindr and an app allowing frame-by-frame slowdown of video.

During a search of the officer's home, police seized an iPad and inside a safe hidden in a wardrobe they found another iPhone, a Sony phone, a bundle of four pairs of folded children's knickers, shredded underwear in a bag, a disc containing images, two hard drives and two sex toys as well as condoms and lubricant, the prosecutor told the court.

His partner was 'visibly upset' when the discoveries were made. Dempster's DNA was later found on two of the pairs of knickers, one of them from semen. When his child victim was video interviewed, the youngster revealed the defendant had 'properly' pulled her pants down and put his head to look at 'it', using the torch on his phone.

She said he didn't speak and touched her 'privates'. Afterwards, Dempster was said to have told her: "You can pull your pants up. I'm done."

The girl said she was scared and left 'shaking'.

Police later uncovered nearly 3,000 child abuse images on his devices, including 104 of the most serious 'category A' type. Among the images were 'pseudo-images' in which Dempster superimposed his body onto the image of a child so it looked like he was having sex with them.

David Jones, defending, said his client, who had no previous convictions, was now trying to come to terms with being 'society's personification of odium and opprobrium'.

He said the defendant, who spent three years with GMP, apologised for his behaviour and 'its consequences' and wished to point out his colleagues in the force were 'blameless'.

Jailing Dempster, Judge Stuart Driver KC told him: "The public places its trust in police officers. Your crimes betrayed the public, your colleagues and worst of all a vulnerable young child whom you were pretending to protect."

He handed Dempster an extended sentence 'for the public protection' of 14 years. It includes a 'custodial' element of nine years which allows him to apply for release to the Parole Board after six years.

Dempster admitted sexual assault on a child under 13, misconduct in a public office and six counts of making indecent images of children. He was also made subject to a Sexual Harm Prevention Order and must sign the sex offenders' register for life.

After the hearing, Deputy Chief Constable Terry Woods said: “I am angry and appalled at this abhorrent abuse of responsibility and trust. We commend the bravery of this young victim for coming forward. We apologise to her family and know nothing will ever undo the harm Dempster has caused to his victims.

“Dempster represents the very worst of society. He is not a police officer; he is a child sex offender, a criminal, and he has no right to be near police uniform or serve the public. Dempster was rightfully arrested and charged before he could ever work in our communities again.

“We have thoroughly reviewed Dempster’s vetting and can confidently say there was nothing to remotely suggest he had a sexual interest in children. He was a man with a career in public service and his record showed no signs of warning.

“Dempster is a depraved exception who we have wasted no time in dismissing and disowning.

“The thousands of officers he has let down are committed to the protection of children in Oldham and Greater Manchester, and anyone who undermines this priority has no place in GMP.”