When one goes looking for evidence

"Hey im going sherlocking!"


or in the sense that they have stumbled upon something stupid, or states the plain obvious

Searching for clues pertaining to events which occur to oneself during a blackout from alcohol, drugs, etc., especially those which occer the previous night.

The art of asking an asking an unreasonable number of questions upon first meeting a person. Often done by a sibling or other family member of a member of the opposite gender.