Solotk
The band around the cap is in fact a very deep blue to the point of almost being black. The area above the band is red, this goes back to the days of the Great War when, to identify Military Policemen to Commanders and as an indication that the man in question was on duty, a red cover was worn over the standard issue khaki cap. This continued to the Second World War and beyond until the introduction of the red beret in the early seventies with units in NI being the first to adopt them. They remained in use by the RMP Mounted Troop stationed in Aldershot until its disbandment in the nineties and the khaki cap with a red cover is now no longer worn. The No1 Dress Forage Cap is still used and not to be confused with the former in that has a black polished peak and chinstrap, a blue band as described and the remaining portion is red. So there!
Those budding detectives amongst you out there have probably worked out who I am now.....D'Oh!