Overview: PC Greg Greaves calls for back-up in Crewe after two suspects shout claims of abuse and racism at him, and in Warrington, paramedic Becki arrives at the home of Marika, a Latvian woman who has been mugged in the street and left with a black eye. Meanwhile, PC Niaz Waddington and his colleagues keep a close eye on Saturday night revelers as the number of racially aggravated incidents dealt with by Cheshire Police on a typical weekend has doubled in the past five years