What aspect does surveillance contribute to physical security?

Surveillance is a critical component of physical security primarily because it involves the continuous monitoring of an area to detect and deter unauthorized access. This monitoring can be achieved through various means, such as video cameras, security personnel, and other monitoring systems. By keeping watch over premises, surveillance not only helps in identifying potential security threats in real-time but also serves as a deterrent to those considering illicit actions, as the presence of surveillance makes it clear that any wrongdoing is likely to be caught and addressed.

In contrast to the correct answer, other choices do not align with the primary function of surveillance within the context of physical security. Increasing employee hours is more related to workforce management rather than security measures. Enhancing team collaboration focuses on improving interpersonal relationships and work dynamics, which are not directly relevant to safeguarding physical assets or personnel. Reducing equipment costs pertains to financial management and operational efficiency, which, while important in its own right, does not encapsulate the essence of the surveillance function in the security domain.