He can see that computer systems first started being used by some police departments in the 1960s. Hence, option B is correct.
When did police use computers?In the United States, police departments have only recently begun to use information technology. In the 2,200 US police agencies with fewer than 100 workers prior to 1987, less than 2% used computers. Only 40% of police units had mobile computer terminals as late as 2003.
As Home Secretary in 1822, Sir Robert Peel embraced the notion of professional policing. A full-time, professionally trained, and centrally organized police force known as the Metropolitan Police was founded for the greater London area in 1829 by Peel's Metropolitan Police Act.
Thus, option B is correct.
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