Which two terms describe the two types of investigation?

Which two terms describe the two types of investigation?

• A. Formal and informal
• B. Initial and final
• C. Preliminary and secondary
• D. Primary and tertiary

Answer: (C)

The main idea here is that investigations happen in two phases: a preliminary investigation and a secondary investigation. The preliminary part is quick and initial—it’s about gathering basic facts, identifying what happened, and determining what immediate actions are needed to stop the problem or prevent further damage. The secondary investigation is more thorough and formal. It digs deeper to confirm facts, determine causes and extent, gather complete evidence, and outline corrective actions or lessons learned. This two-phase approach keeps response fast and effective while ensuring a solid, well-documented follow-up. Other options mix up what the two terms describe: formal vs informal is about how you conduct the probe, not the two phases; initial vs final suggests start and end rather than two distinct investigation stages; primary vs tertiary isn’t the standard terminology used for this purpose.

The main idea here is that investigations happen in two phases: a preliminary investigation and a secondary investigation. The preliminary part is quick and initial—it’s about gathering basic facts, identifying what happened, and determining what immediate actions are needed to stop the problem or prevent further damage. The secondary investigation is more thorough and formal. It digs deeper to confirm facts, determine causes and extent, gather complete evidence, and outline corrective actions or lessons learned.

This two-phase approach keeps response fast and effective while ensuring a solid, well-documented follow-up. Other options mix up what the two terms describe: formal vs informal is about how you conduct the probe, not the two phases; initial vs final suggests start and end rather than two distinct investigation stages; primary vs tertiary isn’t the standard terminology used for this purpose.