Police investigating a string of indecent exposures in Salford, and have asked the public to remain vigilant and report incidents quickly.
There have been 23 exposure crimes in Ellesmere Park and Walkden in the past 12 months, the latest occurring on Friday 8th August.
A large proportion of the victims have been girls of school age.
Officers are advising that chances of catching the perpetrator increase significantly if the crimes are reported immediately to Police.
Detective Inspector Alan Clitherow said: “We want increased public awareness to coincide with schools re-opening after summer holidays.
“It is vital that any victims report the matter immediately so we can get to the area fast.
“Following the most recent incident, where the victim called straight away, the offender was arrested.
“It is very difficult to locate and prosecute the offender after the offence, as the primary evidence is mostly down to positive identification.”
Five people have been arrested in relation to the offences in Salford in the last year, four of whom were charged, but officers warn that a repeat offender remains at large and likely to strike again.
The most prolific offender is described as white, around 30 years old, slim build with fair or ginger hair.
“There is a clear trend through the offences of a repeat offender, the one described above, and we do not believe this male is one of the five previously arrested,” said Alan Clitherow.
“We do have offences with different descriptions to male above, so he is not responsible for all the crimes, but we believe around two thirds of them.”
In light of the prolific nature of this offender and the frequency of these types of incidents in Salford and Walkden, particularly Quaker Bridge in Eccles, GMP have responded by increasing resources and organising extra patrols in the areas most affected.
Clitherow added: “Plain clothes and uniform officers have been deployed, plus force resources such as dog handlers and mounted officers.
“It is important to reiterate that no other sex crimes are believed to be linked to these incidents, so there is no need for excess concern, however this offender obviously needs to be found to reassure the local community and safeguard the area’s school children.”
Anyone with information is asked to call Police on 101 or independent charity Crimestoppers anonymously on 0800 555 111.
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