Ruth Turner – Blair’s director of government relations – is the latest New Labourite to have been questioned by police in connection with the cash for honours probe.

I don't know a lot about this woman, who only got involved in Labour financing after I finished my book on the subject. So I'd be grateful for any information from those who have had dealings with her.

Meanwhile, party treasurer Jack Dromey is sticking to a ‘no comment’ stance. Which, as any journalist will tell you, is something of a first.