Inside Saudi Arabia’s Anti-corruption Campaign - BBC News

The BBC has heard details about how Saudi Arabia's anti-corruption drive is being conducted. It began in November with the rounding-up and detention of dozens of citizens, including members of the royal family.

A Canada-based businessman who was flown to the kingdom to help the authorities construct a case against the billionaire investor Prince Alwaleed bin Talal has been talking to Newsnight's Mark Urban.