Factual error: With two exceptions, all the policemen shown in both 1949 and 1953 are wearing the old-fashioned tunics with high, closed collars. The Metropolitan Police adopted the more modern open-necked tunic with collar and tie in 1948, and this is shown worn by the policeman who visits Christie and by the officer who arrests him.
Factual error: The policeman who comes to visit Christie to tell him about the burglaries and those escorting Christie outside the police station are wearing the divisional letter 'X'; Notting Hill, where Rillington Place was located, was actually covered by F Division, which was the division responsible for investigating the crimes. X Division covered neighbouring Kilburn and Willesden.
Factual error: When Reg is visited by the local policeman, his collar number starts with X followed by a number. In that area his divisional letter should have been an F.
Factual error: The wigs in the courtroom scenes are not correct. The barristers' wigs are too full and the judges are wearing the shoulder-length wigs only worn on ceremonial occasions; for normal court work they have worn similar wigs to barristers since the 1840s.
Factual error: The barristers address the judge as "Your Honour." High Court Judges like Mr Justice Lewis are addressed as "My Lord."
