The SBRE is derived from a conceptual description of activities as they are explained by a human operator. It allows for multiple Video Analytics and AI events to contribute to an alarm trigger and leverages the ability to fuse inputs from multiple sensors to form a robust alarm. The SBRE can differentiate between complex scenarios such as a vehicle stopping opposite a sensitive building, driver leaving the vehicle and walking away, or a taxi stopping at the same location to let a passenger out. Another example would be differentiating between a passenger in an airport putting a bag on the floor and standing next to it from a person putting a bag down and actually abandoning it.