A schoolboy trying to save his youth club was hauled from class after his plan to protest outside David Cameron’s constituency office was spotted - by anti-terror police.

In an astonishing over-reaction, 12-year-old Nicky Wishart was warned he faced arrest.

“I couldn’t believe it,” he said. “The policeman asked me lots of questions about why we were having a protest and who would be there.

“I said it was simply because we didn’t want our youth centre to close - it’s a fantastic place to go and there isn’t much else for us to do round here.”

The full-scale security operation swung into effect days after Nicky made an innocent request on Facebook to “save our youth centre”.

The surprised boy was told police were now monitoring his Facebook posts - which are mainly gossip and banter from school about lessons and friends’ haircuts.

He was told he would be responsible for any “trouble” at the well-mannered picket on Friday night.

Public-spirited Nicky, one of the PM’s constituents in the Oxfordshire seat of Witney, said: “All this is because Mr Cameron is our local MP and it’s a bit embarrassing for him.”

He said the police arrived during an English lesson on Tuesday afternoon.

“I was taken out of class - and the policeman said, ‘Are you aware that the anti-terrorist squad are looking at your Facebook account?’ He said that if anything got out of hand, they would arrest people.

The kid doesn’t want the cuts Cameron is suggesting because they’ll close his youth center.  What part about that is so objectionable that the police think harassing him is a productive use of their time?