What is scan the perimeter?

"Scan the perimeter" typically refers to the process of assessing the boundaries or edges of a specific area, often for security or surveillance purposes. This practice can involve visually inspecting or using technology to detect any potential threats, vulnerabilities, or unauthorized access points. It is commonly employed in various fields, including military operations, law enforcement, and security management, to ensure safety and preparedness. Overall, it aims to maintain awareness of the surroundings and mitigate risks.