Sometime in the 1970s, as far as I can recall, several police forces were offered former Police Mobile Column vehicles as they were thought suitable for conversion to Forward Command Vehicles. Hertfordshire Constabulary acquired an ex military Bedford RL 4 wheel drive lorry, registration UGY 828F and put it to use for that purpose. It was also used for driver training on large vehicles. It continued in service until it was replaced in 1988 by a purpose built Land Rover, registration E997 KAC. This was built on an extended Land Rover chassis of 127 inches.