Factual error: Superintendent Hastings does not wear the ribbon of the Diamond Jubilee Medal (awarded to all officers with five years' service in 2012), although he does wear the Golden Jubilee Medal (awarded to all officers with five years' service in 2002) and the Police Long Service and Good Conduct Medal (awarded for twenty years' service). Other characters do wear the Diamond Jubilee Medal, so this is obviously after it has been issued. In subsequent series he is wearing the ribbon.
Factual error: Deputy Chief Constable Dryden wears two rows of silver oakleaves on the peak of his cap. Deputy Chief Constables only wear a single row of oakleaves.
Suggested correction: However, DCCs in the British Transport Police and Metropolitan Police (Deputy Assistant Commissioner) have two rows of this insignia.
Indeed, but this is not the DCC of the BTP or a DAC in the Met.
