A mysterious "Snot" graffiti tag has been cropping up across Ely over the past few months.
The tag, which is the word "Snot" with a distinctive "S", has appeared on bins and walls across the area.
Cambridgeshire Police have now confirmed that a man in his 20s is helping the force with their enquiries.
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The police have advised people to report anti-social behaviour to them online via their website, which can be accessed by clicking here.
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