Most nights of the year, somebody in inner-city Baltimore gets murdered and it's usually to do with drugs.

The poorest parts of the city's east and west sides have been in the grip of heroin and crack-cocaine for many years now, despite the startling statistic that reported crime is down 50% since 1999.
Such is the self-confidence of the drug-dealing fraternity, that last year they made a DVD called "Stop Snitching".