A CERN manager, supported by two outside companies, manages the three entities in the GS Department that are in charge of various aspects of security. In total, about 80 people, 300 cameras, a surveillance centre (CSA) and 22 kilometres of fences are responsible for ensuring that the Organization is secure. But in spite of these significant resources, the best strategy for maintaining a good level of security at CERN is the active support of its users.
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