What is the purpose of obtaining lead verification and source documents?

• A. To confirm data accuracy and establish reliable origins for all critical facts.
• B. To prepare press statements for stakeholders.
• C. To train new investigators.
• D. To adjust flight schedules after an incident.

Answer: (A)

In an investigation, the emphasis is on making sure every important fact can be trusted and traced back to where it came from. Lead verification means checking who provided information and whether they have the knowledge or authority to speak on that point. Source documents are the original records or materials that establish where the data came from and how it was produced. Together, they ensure data accuracy and give each critical fact a reliable origin, so conclusions rest on verifiable, credible evidence rather than memory, hearsay, or unverified notes.

For example, a maintenance entry about a part replacement should be verifiable against the original shop ticket, part tag, or procurement records. Witness statements should include the identity of the witness and corroboration where possible. Instrument data should be traceable to the actual data recorder or file. This traceability and verification build a solid evidentiary foundation for the investigation.

The other options do not fit because they deal with communicating with stakeholders, training investigators, or changing operations after an incident, none of which address ensuring data credibility and provenance.