Protective surveillance is the creation of a covert security team around an individual or group, forming a protective bubble around the client in a covert manner. The Protective Surveillance Team (PST) watches those that may be watching the client. The primary role of a PST is working to control spaces and areas that would be used by hostile surveillance and potential imminent threats. Their objective is to pro-actively identify hostiles and threats (achieved through counter surveillance, behavioral analysis, and risk assessment).