In selecting video surveillance cameras, the primary criterion is the ability to clearly identify objects or individuals within the monitored area, which is directly determined by the horizontal resolution.
* Horizontal resolution represents the number of distinct points of information captured across the width of the scene and dictates the level of detail available for identification.
* Pixel count or chip output alone does not guarantee usable image quality; it must be supported by optics and scene coverage.
* Sensitivity affects performance in low-light conditions but is secondary when the main goal is resolution-based identification.
* Focal length adjusts the field of view but does not replace the need for sufficient horizontal resolution to meet identification objectives.
ASIS PSP guidance stresses that camera selection should align with the operational purpose, ensuring captured video meets evidentiary and situational awareness requirements while optimizing system design and cost efficiency.

In the PSP methodology, the preliminary design phase includes both threat assessments and vulnerability analyses.
* Threat assessment identifies potential adversaries, hazards, and scenarios that could negatively impact the facility or operations.
* Vulnerability analysis examines weaknesses in systems, processes, and physical infrastructure that could be exploited by threats.
These analyses inform the design of security measures by determining risk exposure and guiding the selection of protective layers. While operating security reviews and security systems architecture focus on implementation and operational evaluation, the preliminary design phase is where risks are systematically identified and addressed in the system concept and specifications, consistent with ASIS PSP guidance.

Passive Infrared (PIR) sensors operate by detecting changes in infrared radiation (heat) levels in a given area.
They do not emit any energy but instead sense the movement of heat signatures (typically from people) across a background that has a stable infrared profile. When a warm object moves in front of the sensor, it registers a change and triggers an alert.
B and C describe active sensors (e.g., microwave or ultrasonic).
D refers to analyzing reflected infrared, which is not how PIR sensors function.
References:
PSP Study Guide - Intrusion Detection Technologies
POA Manual - Passive Sensor Principles

Trespass is the unauthorized physical intrusion onto someone else's property, or the refusal to leave after authorization has been withdrawn. It is a civil tort and can also carry criminal consequences if associated with damage or criminal intent.
Prosecution (A) relates to criminal legal action.
Verdict (C) is the outcome of a legal proceeding.
"None of the above" (D) is incorrect because Trespass is the correct legal term.
References:
PSP Study Guide - Legal Principles of Property Protection
ASIS POA Manual - Trespass and Property Law