Examination of customized questioned digital documents.

Area of Science:

• Forensic Science
• Digital Forensics
• Document Examination

Background:

• Digitization increases valuable digital documents, creating a need for forensic analysis.
• Current forensic science lacks standardized methods for questioned digital documents (QDDs).
• Existing techniques for document type identification and image forensics are insufficient for QDD analysis.

Purpose of the Study:

• To develop novel methods for examining QDDs, specifically those customized from databases.
• To establish Questioned Digital Document Examination (QDDE) as a digital counterpart to traditional QDE.
• To explore the digital aspects of forensic disciplines for clear question resolution.

Main Methods:

• Developing analysis techniques for QDDs customized from databases.
• Designing methods for QDDE, including document recreation processes.
• Evaluating the feasibility of the recreation process in various scenarios.

Main Results:

• Demonstrated the value of adapting digital forensic approaches from established physical domains.
• Showcased the practical applicability of the proposed QDDE methods.
• Validated the document recreation process for analyzing customized QDDs.

Conclusions:

• A digital counterpart to questioned document examination (QDDE) is necessary and beneficial.
• Adapting digital forensic principles from physical domains offers a viable path for QDD analysis.
• The proposed methods for QDDE are practical and effective for examining database-customized documents.