The Department of Homeland Security (DHS) defines Suspicious Activity as any observed behavior that could indicate terrorism or terrorism-related crime. This includes, but is not limited to:

• Unusual Items or Situations: A vehicle is parked in an odd location, a package/luggage is unattended, a window/door is open that is usually closed or other out of the ordinary situation occurs.


• Eliciting Information: A Person who questions individuals at a level beyond curiosity about a Building’s purpose, operations, security procedures and/or personnel, shift changes etc.


• Observation Surveillance: Someone pays unusual attention to Facilities or Buildings beyond a casual professional interest. This includes extended loitering without explanation (particularly in concealed locations) unusual, repeated, and/or prolonged observation of a Building (e.g., with binoculars or video camera) taking notes or measurements, counting paces, sketching Floor Plans etc.