A village on the edge of Truro has seen a sudden spike in anti social behaviour with razor blades being placed on children's play equipment and cars set on fire.
Now a group of residents in Threemilestone has started to carry out street patrols to tackle the problem.
- Watch Cornwall Correspondent Steve Hardy's piece below:
The community is not the kind of place you would associate with vandalism and anti-social behaviour, but since Christmas it has suffered with incidents normally associated with urban areas.
An attempt was made to set a house on fire and three cars parked on a housing estate were badly damaged by fire.
But most disturbing was the targeting of play equipment on a children's park next to the primary school.
Lucy Walker, whose daughter goes to the school and uses the park, was alerted by a mother who found razor blades on a slide.
Bolts had also been loosened on a swing which would have collapsed if a child had got on it.
The incidents became so numerous that Lucy and other residents set up street patrols.
Then a public meeting was called by local councillor Dulcie Tudor and attended by the police.
The police are supporting the patrols and offered advice on how to carry them out lawfully.
And the patrols seem to be working.
There has been an improvement in anti-social behaviour, but the patrols are to remain for the foreseeable future.