A sex-pest police officer has been jailed for 14 months after being caught secretly filming up the skirt of a young woman in a shopping centre.
Married Aidan Thompson also took furtive footage of another young woman whose flatmate had suffered a serious sexual assault when he was called to the scene to investigate.
The 35-year-old police constable is believed to be suspended from duty with Greater Manchester Police and will be dismissed, Preston Crown Court heard.
His wife, family and colleagues were said to be "staggered" at the behaviour of the otherwise "dedicated" policeman.
Investigators also recovered footage from Thompson of women undressed in changing rooms and even from the locker room of a police station.
Thompson, from Stockport, admitted two counts of misconduct in a public office and outraging public decency at an earlier hearing.
Passing sentence Judge Mark Brown, Recorder of Preston, told him:
Francis McEntee, prosecuting, had told the court that Thompson had been called to a flat to speak to a young woman whose flatmate had suffered a serious sexual assault.
While securing the crime scene, on duty and in uniform as crime scene investigators began gathering evidence, he engaged in "chit chat" with the woman as she got herself ready to go for a night out.
After getting changed she emerged wearing a short skirt and off-the-shoulder top, and Thompson secretly filmed her thighs with his mobile phone while they chatted.
The recording was only discovered after Thompson's arrest months later on the evening of October 6, in the Arndale Centre in Manchester.
He had been recorded by security cameras at the TK Maxx shop for up to 40 minutes "stalking" a "striking" 17-year-old girl wearing a short skirt.
On CCTV shown to the court he was seen following her at a distance as she browsed aisles, before he used a plastic bag with a hole in it to film her, sometimes coming closer to swing the bag under her skirt.
He was also seen to take the camera out and check the screen.
Police were called and he initially denied wrongdoing, telling the arresting officer:
But when police searched his home they found computer equipment and more surreptitious recordings.
These included filming a young women in underwear in a changing room, the backsides of girls in tight pants and a bizarre recording from a police station with Thompson fiddling with a leotard hanging in the locker room.
None of the victims were aware they were being filmed. The girl in the Arndale Centre later told officers: "If you can't trust a police officer, who can you trust?"
Bernadette Baxter, defending, said Thompson suffers some psychiatric difficulties, would lose his job "imminently" and suffered "shame and ignominy" as a result of his behaviour.