In London, the situation gets progressively more difficult for Benny's businesses as continued pressure from the Metropolitan Police Commissioner Colin Blamire (Peter Jeffrey) forces the heavily corrupt vice ("dirty") squad to reluctantly act. Meanwhile, tired of being repeatedly blackmailed by the dirty squad, one of Benny's men takes evidence of Met corruption to the Sunday papers and the resulting scandal forces the government to hold an independent inquiry. Roy Johnson (Tony Haygarth) is brought in from Newcastle as an outsider to run the investigation but is obstructed at every turn by Blamire, dirty squad Commander Harry Chapple (Donald Sumpter) and his henchman John Salway (David Schofield). Despite the setbacks, Johnson is able to present a report to the Home Secretary detailing extensive Met corruption. Blamire, however, is able to leverage a separate investigation into the Home Secretary's past business dealings to blackmail him into suppressing the inquiry findings. A disheartened Johnson returns to Newcastle to take early retirement. With the inquiry behind them, Benny and the dirty squad are free to reach new lucrative arrangements. Benny also has Geordie framed and imprisoned in revenge for the affair with Julia years before. Subsequent police investigations eventually bring down Chapple, Salway and many other corrupt Met officers.