When should a CISD be performed after a major incident?

• A. Within 12-24 hours
• B. Within 12-72 hours
• C. Within 1 week
• D. Only after all investigations are complete

Answer: (B)

The main idea here is when to provide a critical incident stress debriefing to help responders process the event with peer support. The most appropriate window is after the incident but while memories are still fresh enough to discuss, specifically within 12 to 72 hours. This timing lets people share initial reactions, normalize their responses, and begin coping strategies before distress becomes more ingrained or avoidance sets in. It strikes a balance between not overwhelming individuals with a debriefing immediately during the peak of adrenaline and not waiting so long that the opportunity for early support is lost.

Choosing a window of only within 12–24 hours is too restrictive because some responders aren’t ready to articulate their experiences that soon, and logistics or shift changes can make scheduling difficult. Waiting up to a week misses the chance to address acute stress when it’s most helpful and can reduce the impact of the debriefing. Delaying until investigations are complete isn’t appropriate because CISD is about early psychosocial support, not delaying until formal processes finish.