When should investigators escalate to specialists?

• A. Specialists should never be used.
• B. Involve specialists only if the legal team demands it.
• C. Investigators should escalate to specialists when evidence suggests specialized knowledge is needed to interpret findings.
• D. Involve specialists only if there is a contract with the manufacturer.

Answer: (C)

When investigators encounter findings that require expertise beyond what they possess, they should bring in specialists. This ensures that complex data is interpreted correctly and that the investigation identifies accurate root causes and contributing factors. The trigger is evidence indicating that specialized knowledge is needed—not external demands or contractual obligations.

For example, if metallurgical analysis shows unusual fracture patterns, a materials or metallurgical specialist is needed to interpret the failure mode. If an electrical anomaly arises, an avionics or electrical engineering expert should assess it. If toxicology results or chemical analyses are involved, subject-matter experts in those fields are brought in to draw correct conclusions. Escalation is driven by what the findings require, not by who is asking or what contracts exist. This approach helps keep the investigation technically sound and defensible.