Out on Patrol with the Dallas Police

Jul 13, 2016, 12:44 AM

This is Sergeant Anthony Martin of the Dallas Police Department. Three of the five officers killed here last week came from his local precinct, he's still in shock. But he's also quite frank about the tensions between police and ethnic minority communities in Dallas, and across the US. For this BBC Radio report, I spent an afternoon in Sergeant Martin's patrol car, driving round one of the city's more deprived neighbourhoods.