Surveillance

Monitoring something for the purposes of influencing, protecting, or suppressing it

Surveillance is the systematic observation and monitoring of a person, population, or location, with the purpose of information-gathering, influencing, managing, or directing. It is widely used by governments for a variety of reasons, such as law enforcement, national security, and information awareness. It can also be used as a tactic by persons who are not working on behalf of a government, such as by criminal organizations to plan and commit crimes, and by businesses to gather intelligence on criminals, their competitors, suppliers or customers.

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