Police in Exeter are hoping the public can help them track down those responsible for an outbreak of graffiti.
Hollow Lane, Heavitree, Polsloe and Whipton have all been targeted by taggers.
Images of the tags are being stored on a database along with details of the locations, and once an offender is linked with a particular tag they an be charged with criminal damage.
Police are urging anyone with information on the culprits to come forward.
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