Have a listen to the clip below from last night's File on Four (the full programme is still available in full on the iPlayer). It's a wonderful example of a journalist - in this case Gerry Northam - digging beneath the veneer of statistics presented by a PR machine and exposing them as spin.
He's interviewing the director of the Serious Fraud Office, Richard Alderman, who has just published a report suggesting that successful prosecutions by his organisation have increased impressively. But Northam realises the figures don't add up, and uses the data provided to challenge Alderman. Note particularly how the journalist forensically presses home the point in the face of blanket denials by his quarry. Watchdog journalism at its best.