AMetropolitan Police murder squad detective hid a secret life as a paedophile who trawled the internet looking for images of young girls, a court was told.
Det Con Kenneth Dymond, who featured in the BBC One documentary "The Met: Policing London", confessed to being sexually attracted to teenage girls and addicted to pornography.
Dymond, an expert in CCTV analysis who works for the Met's Specialist Crime and Operations Command, also made contact with a 15-year-old girl over the internet causing such concern that her brother threatened to report him as a paedophile.
Stephen Kemp, prosecuting, told Lincoln Crown Court that police raided Dymond's home in south-east London in August 2015 and seized two lap tops and two mobile phones.
Analysis of the equipment revealed 544 indecent images of children including 172 which were of the most serious level.
He is appalled at the images. He has no sexual attraction to pre-pubescent childrenRekka Hollos, defending
The images included film footage of a baby girl aged just 18 months being raped by an adult man.
Mr Kemp said "Indecent images of children were found on both of the laptops. The internet search history identified various terms which indicated searches for material of a paedophilic nature.
"There were extracts of a Skype conversation recovered from a lap top which appeared to be from a 15 year old girl's brother calling the defendant a paedophile."
Dymond, 36, now of Ludford, Lincolnshire, admitted 10 charges of making an indecent image of a child. He was jailed for eight months and placed on the sex offenders' register for 10 years.
The court was told that he had a previous conviction in August 2003 shortly after he joined the police force. He received a six month conditional discharge at Redbridge Magistrates' Court for offences of criminal damage and a section five public order offence.
Reka Hollos, in mitigation, urged the judge to suspend any jail sentence so that Dymond could continue to receive treatment for his addiction.
She said "He is addicted to pornography. His sexual attraction is to teenage girls. He was not looking for images of very young children and has no such addiction to them. He is appalled at the images. He has no sexual attraction to pre-pubescent children."
Miss Hollos said that Dymond suffers from chronic depression and has undergone counselling for his porn addiction.
"He is a serving police officer. It is a career he became involved in because he wished to help people out after suffering bullying as a child.
"That career is over. He is presently suspended. There is an upcoming hearing where the likely outcome is dismissal. He is very remorseful for what he has done."
Judge Michael Heath, passing sentence, told him "As a serving police officer you ought to know that children are grievously abused so that this material, this utter filth, can be put out there on the internet for people to view it. I cannot suspend the sentence in a case such as this."
Dymond featured in episode two of "The Met : Policing London", which was broadcast in June 2015 and examined the investigation into the murder of Chris Foster, who was stabbed to death outside a pub in Borough after he was mistaken for the intended victim of the knife attack.
Dymond was suspended by the Met after the investigation was launched into him and is due to face a disciplinary hearing later.