Cases of public masturbation and flashing have been reported more than once a month in the last year, police figures show.
Between January and November 2013, a total of 15 cases of flashing were recorded by the Metropolitan Police in Islington.
The data, obtained by a Freedom of Information request seen by the Gazette, also revealed that there were three separate cases of pimping, or controlling prostitutes for personal gain, during the same period.
An additional sex-related offence was recorded, relating to an individual who was forced into prostitution by another person.
The shock findings come after a spate of convictions for public exposure and masturbating in the last 18 months, mainly located in and around London Underground stations.
Pervert David Charles Cook, 62, who was living in a Travelodge in Maidstone, was jailed and permanently banned from the Tube in September last year after pleasuring himself in front of horrified female passengers.
Another fiend Andrew Leontilu, 27, Benwell Road, Holloway, followed two teenager girls aged 13 and 15 to Caledonian Road and Barnsbury station in November and exposed his manhood after they refused to speak with him.
Det Ch Insp David Hutcheson from Islington Police said: “Police have arrested and charged 11 people in 2013 for indecent exposure. A further two other suspects were arrested but no further action taken.
“In the other cases a majority were not prosecuted due to the victims not being prepared to attend court.
“Islington take a robust approach with sex offenders and endeavour to prosecute when sufficient evidence. Indecent exposure can be a traumatic crime for the victim and Islington Police will take positive action to apprehend any offender.”
According to the Sexual Offences Act 2003, Exposure is categorised as an intentional attempt reveal one’s genitals and cause others “alarm or distress”.
If found guilty, perverts can face up to two years in prison.
A spokesperson from national charity Victim Support said: “An incident such as indecent exposure can be very upsetting to witness.
“If people within the borough are affected by this type of crime and wish to speak to someone in confidence about it, please get in touch with Victim Support in Islington on 0203 3301 9850.”
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