Explanation:

Certainly! Let's delve into the different options:

- Investigation:

- ?? Process of collecting evidence and facts.

- ?? Laying traps is often used here to catch suspects with evidence.

- ?? Key phase in law enforcement.

- Inquiry:

- ?? A broader process of seeking information.

- ?? Not specifically focused on collecting legal evidence.

- ?? Less formal than an investigation.

- Preliminary Inquiry:

- ?? Initial phase to assess if a full investigation is needed.

- ?? May involve gathering basic info but not laying traps.

- ?? Centers on determining the viability of further steps.

- Trial:

- ?? Legal proceedings in court.

- ?? Involves presenting evidence, not collecting it.

- ?? No traps laid at this stage.

Correct Answer: Investigation