Applied Methods and Techniques Flashcards

What is the primary purpose of an adversary sequence diagram (ASD) in a physical protection system evaluation?

Answer: To map adversary paths through protection layers and identify the most vulnerable path

An ASD models the layers and paths an adversary must cross to reach a target, revealing the weakest path.

In path analysis, what is the critical detection point (CDP)?

Answer: The last point on a path where detection still leaves enough remaining delay for the response force to interrupt

Detection after the CDP comes too late because remaining delay is shorter than response force time.

Which principle states that detection should occur early on the adversary path, with delay placed after detection?

Answer: Timely detection

Delay is only useful if it comes after detection, giving responders time to arrive.

The EASI model calculates which key performance measure for a single adversary path?

Answer: Probability of interruption

EASI (Estimate of Adversary Sequence Interruption) estimates the probability that the response force interrupts the adversary in time.

Under common CPTED landscaping guidance, how should vegetation be maintained to support natural surveillance?

Answer: Shrubs kept low (about 2-3 feet) and tree canopies trimmed up (about 6-8 feet)

Low shrubs and raised canopies preserve clear sightlines between roughly knee and head height.

Decorative paving, low fencing, and signage marking the transition from public to private space are examples of which CPTED strategy?

Answer: Territorial reinforcement

Territorial reinforcement uses physical cues to show ownership and define private space.

Which statement best describes balanced protection?

Answer: Every possible adversary path presents roughly equal difficulty, so no single path is a weak link

Balanced protection means the minimum time and detection along any path is comparable, avoiding weak links.