Which method of lighting has the disadvantage that it often illuminates or silhouettes security personnel as they patrol their routes?

• A. Direct
• B. Controlled
• C. Indirect
• D. Spot

Answer: (B)

When evaluating lighting for security patrol routes, the goal is to illuminate the area for safety and deterrence without making guards easy to spot or their outlines easy to read from a distance. Controlled lighting is about precisely directing and timing light to specific areas, often with shielding to limit glare and spill. The drawback of this approach is that the exact angles, timing, and limited coverage can create situations where a patrol is clearly lit or casts a distinct outline against a darker background as they move. That visible illumination or silhouette is exactly the type of exposure the system is trying to avoid, so this method presents that notable disadvantage in practice.