(n.) The act of intercepting; as, interception of a letter; interception of the enemy.

amassing evidence blind flying blind landing bringing to light casual discovery catching chance discovery close inquiry department of investigation detective work determination determining disclosure discovery distinguishment espial excavation exhaustive study exhumation exposure find finding finding out hearing hurricane tracking indagation interception invention investigation investigative bureau legislative investigation legwork locating location lucky strike perscrutation probe ranging recognition rediscovery research revelation serendipity sifting sleuthing spotting storm tracking strike treasure trove trouvaille trove uncovering unearthing witch-hunt