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The Collaborative International Dictionary
Reinvestigation

Reinvestigate \Re`in*ves"ti*gate\ (-v?s"t?*g?t), v. t. To investigate again. -- Re`in*ves`ti*ga"tion (-g?"sh?n), n.

Wiktionary
reinvestigation

n. An act or process of reinvestigate: a repeat of an earlier investigation