Derek banged up

Derek has been taken to an isolated interrogation room after he was wrongly accused of being a double agent.

17:38 28 July 2005

Derek has been taken to an isolated interrogation room after he was wrongly accused of being a double agent.

The housemates were invited to the Ambassador's Ball, and each was dressed as an international character.

But Big Brother included a twist in the festivities, by asking the jet-setting crowd to agree on who they thought was a double agent with ulterior motives.

If the housemates had chosen Ritagianni (or Kemal, as he is better known), the real double agent, then the weekly task will have been failed.

Instead they chose Lord Marple (Derek), after German ace fighter pilot Hans (Craig) managed to persuade the others that the British spy was playing for both sides.

The upshot is that Derek has been banged up in a secret room, sleeping on a camp-bed, while the rest of the housemates wonder what's happened to the falsely accused Tory speechwriter.

"I am the very best of British," said Derek. "I am what I say I am."

His fellow inmates, though, begged to differ.