As part of the celebration of Charles Stewart Rolls feat the Dover Amateur Radio Club are holding an event by the Monument. The Ariel the one of the radios in high above on a kite, and the call sign is GB1CR in honour of the aviator.
Charles Rolls was also the joint founder of Rolls Royce, but unfortunately he didn't live long enough to see the huge success his company had made. On July 12th he was killed during a flying display at Hengistbury Airfield, Bournemouth. He was the first Briton to be killed in a flying accident and the 11th internationally.
When I was there they were receiving calls from France, Germany and Holland, but later, when the sun went down, they would have been in touch with countries as distant as Japan.
I don't think the police visit was official, just a bit of curiosity. It was interesting to see the constable on the left carefully shielding his cigarette in his right hand, rather like a surreptitious drag by a schoolboy in the playground.