The BBC has more details of the story:

"A man believed to a volunteer for the Liberal
Democrats has been arrested by police investigating vandalism and theft
of Conservative election posters. The 38-year-old from Eastbourne, East Sussex, is being held by Sussex Police on suspicion of theft and harassment. He surrendered himself to officers in the company of his solicitor just after 1800 BST on Tuesday.

A spokesman for the Liberal Democrats said he would no longer be helping them with their election campaign. He
added: "A Liberal Democrat volunteer did attend the police station this
afternoon. He will be playing no further part in our election
campaign." The man is not a candidate for the party.

Sussex Police spokesman said: "Police are investigating the vandalism
and theft of political campaigning election signs from locations across
Eastbourne. "They have this evening arrested a man on suspicion
of theft and vandalism. He is currently in custody and will be
questioned this evening."

Jonathan Isaby