When will Blair be arrested?

Last December I suggested that, despite what Tony Blair's spinners were saying, the cash for honours row was far from over.

And this morning we learned that Blair was interviewed by the police again last Friday. The Metropolitan Police Force issued a statement: "The prime minister has been interviewed briefly to clarify points emerging from the ongoing investigation. He was interviewed as a witness, not as a suspect and co-operated fully"

Now at last No 10 is saying that they don't know if Blair will be interviewed again. Rumours are also rife as to why Scotland Yard asked for a news blackout for almost a week. Many suggest that the reason was to ensure that Lord Levy who was arrested for the second time this week was not tipped off.

It all started so well ten years ago and now Blair leaves office with Iraq hanging about his neck and mired in sleaze. Even John "Back to Basics" Major was never interviewed by the police while in office as part of a criminal investigation.

But this investigation is far from over. Don't rule out Blair facing a third interview and this time one under caution. After all, Knacker of the Yard has been known to arrest those who were previously only "helping with inquiries".