I have spent more of my life in the company of policemen than I ever expected. Many of them became my friends. So, no run-ins, no. I have however been on a number of occasions to the ‘Secret Policemen’s Ball’, actually an annual Special Branch party at Scotland Yard to which they invited all the people they protect or have protected. At these parties, I met, among others, Margaret Thatcher, Tony Blair and Enoch Powell.