ADMICRO

Today the police are able to make use of all kinds of scientific and technological aids in their fight against crime. This was not always the (28)_________, however. 

In the early days of the British police force , during the nineteenth century , the police officer's whistle was his (29) _______ way of calling for help if he got into difficulty. Gradually, in the twentieth century, things began to (30) ______ .Those police officers lucky enough to be given a patrol car rather than a bicycle could also take (31) ________ of radio communications. 

In 1903, a new system for identifying people by their fingerprints was discovered. Although it soon proved to be one of the most significant developments in crime investigation, a (32) ______ of the national fingerprint collection could take days, if not weeks, until computers were introduced in the 1970s.

(28).................................

 

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