John, our rural roads are not like those in Kansas. Single track and winding between tall hedges over very undulating topography. While phones could be tracked in most places, visual contact would require cameras every few yards.

Meanwhile, there has been a case in Birmingham where the security forces bamboozled the local authorities into installing umpteen cameras around areas where Muslims lived in order to "reduce crime". The matter was spotted, identified as false, and the process stopped.

Penny