Disclosed is a forensic system capable of reducing the burden of review of a reviewer for relevance determination.;The forensic system includes a display unit that displays at least one document in a document group that includes a plurality of documents included in the digital information to a user; a classification information receiving unit that receives classification information assigned to a target document which is a document for determination of whether the document is related to a lawsuit by a user in the document group, based on the determination of whether the document is related to the lawsuit by the user; a score updating unit that updates a score of a document in the document group corresponding to predetermined classification information based on a comparison result between a feature value of the target document of which the classification information is received and a feature value of the document in the document group; and a display control unit that controls a display order of the documents in the document group to be displayed by the display unit based on the updated scores.
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