1901, fingerprint branch - system of fingerprints from everyone arrested
1909, police bicycles are introduced, allowing officers to peruse criminals more quickly
1930s, police cars are common, two way radios are installed for better communications
1960s, met police first uses computers to process payroll and epnsions
1980, police national computer is launches capable of holding records of 25 mil
TECHNOLOGY
* breathalysers and speed cameras
* cctv
* mass video surveillance
* biometric screening