Forensic Document Examination
Posted: Wed Jan 29, 2025 10:01 am
Forensic Document Examination
1. Handwriting & Signature Analysis
Forensic document examination involves analyzing handwriting, signatures, printed materials, and altered documents to detect forgery, fraud, and document tampering. This field is essential in financial crimes, identity theft, and legal disputes.
1. Handwriting & Signature Analysis
- Compares questioned documents with known handwriting samples.
- Examines letter shapes, slant, spacing, and pressure variations to identify forgeries.
- Electrostatic Detection Apparatus (ESDA) reveals indentations left by writing on underlying pages.
- Identifies forged currency, passports, and legal documents.
- Uses UV light and infrared spectroscopy to detect fake security features.
- Ink and paper composition analysis helps determine authenticity.
- Paper Analysis – Determines age, fiber content, and watermark authenticity.
- Ink Dating – Detects chemical changes in ink to estimate when a document was written.
- Printer and Typewriter Analysis – Identifies fonts, printing defects, and unique characteristics linking documents to specific machines.