A mystery attacker is risking jail by waging war on the county's speed cameras.

In a widespread campaign, many of Kent's roadside spy cameras were defaced with stickers daubed over the lenses around a month ago.

Workers at the Kent and Medway Safety Camera Partnership got stuck in to remove the stickers and glue and clean the lenses.

But the culprit has now struck again - renewing their vendetta against the cameras in the last 24 hours.

A partnership spokesman said the group didn't have the resources to keep undoing the damage - which renders the cameras useless.

In last month’s spate nine out of the county’s 76 cameras were defaced - with a further three targeted this month.

In an open letter to police commanders and Neighbourhood Watch leaders, Katherine Barrett urged them to keep an eye out for the culprit.

She said: "Cameras exist where people have been killed or seriously injured.

"We're keen that your local cameras in your local areas continue working in order to continue reducing the speeds for your communities."

She said the vandal, if caught, could face jail for perverting the course of justice.