It's interesting you say that, Mr T, as I was trying to work out the type of motorcycles in the photos. I'm guessing that in that era the police would have been riding Triumphs or BSA's from 'the mother country'? Equipped of course with the latest technology in front wheel drum brakes and a luxurious sidecar...
(My apologies for the thread drift. I'm hoping the mods will forgive me...)