Deduplication — Legalnaut glossary  A Markdown version of this page is available at https://legalnaut.com/glossary/deduplication.md for AI and LLM tools. 

  Deduplication
=============

 Deduplication removes repeated copies of the same document from a case file, keeping one.

A disclosure set collected from several mailboxes contains the same email many times over. Reviewing it many times over costs money and produces inconsistent decisions.

Matching on checksum catches exact duplicates cheaply and before any processing cost is incurred. Near-duplicates, such as the same letter with a different footer, need a different test and a human decision.

 Related: [Checksum](https://legalnaut.com/glossary/checksum), [E-discovery](https://legalnaut.com/glossary/e-discovery)

 Legalnaut builds this out of your own case file. [See the plans](https://legalnaut.com/pricing).

 SCREENSHOT

    ![]()