What is a common reason OC spray deployment might fail to subdue a suspect?

• A. Perfect aim and immediate compliance
• B. Inadequate exposure (too far away), premature exit from the spray field, subject resistance with protective posture, or environmental drift
• C. The suspect is wearing protective gear that fends off OC spray
• D. Wind speed prevents any spray from traveling

Answer: (B)

OC spray effectiveness depends on delivering a sufficient dose to the target tissues (eyes, nose, and mucous membranes) and keeping the suspect within the spray field long enough for the agent to take effect. If exposure is inadequate, the spray won’t irritate effectively. If the suspect exits the spray field too soon, there isn’t enough contact time for the agent to work. A defensive or protective posture can block droplets from reaching the eyes or mucous membranes. Environmental drift, such as wind, can push droplets away from the target, reducing the dose received.

These factors together explain why a deployment might fail to subdue. The other scenarios are less representative: perfect aim with immediate compliance would mean success; protective gear can hinder effectiveness but isn’t as common a cause on its own; wind that completely prevents travel is unlikely—the more accurate issue is drift reducing the dose toward the target.