Starting in Series 6, Bradley Walsh, Freema Agyeman and Peter Davison are series regulars together. They have all starred in Doctor Who (2005), but at separate times. Bradley Walsh plays Graham (the 13th Doctor's companion). Freema Agyeman plays Martha Jones (the 10th Doctor's companion). Peter Davison plays the 5th Doctor.
In the criminal justice system, the people are represented by two separate yet equally important groups. The police who investigate crime, and the Crown Prosecutors who prosecute the offenders. These are their stories.
The scene cards at the start of the trial sequences say "Crown v. xyz". In England prosecutions are in the name of the Queen and are annotated "R v XYZ"