How explorers are engaged with legal procedure (7)

I believe the answer is:

inquest

'legal procedure' is the definition.

I can't explain the rest of the clue.

(Other definitions for inquest that I've seen before include "hearing" , "A coroner presides over it" , "Judicial investigation to determine facts about a death" , "Judicial inquiry" , "Post-death investigation" .)

I've seen this clue in The Guardian.

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