 On the introduction of the CAD system in 1986, each Metropolitan Police Division had a 'Reserve Room' with a 'Reserve Officer' using a paper based system to manage locally deployed resources.The 'Reserve Officer' recorded non emergency calls directly from calls to the police station, and received emergency (999) calls from a teleprinter which was connected to Information Room at Scotland Yard, where all of London's police 999 calls were received.Call volumes and demands at that time meant most stations had one or two 'Reserve' officers, smaller stations had one officer in the role.