Questioned documents encompass a wide range of materials, including handwritten letters, printed contracts, and altered checks. These documents come into question when their authenticity or authorship is disputed, making them a critical focus of forensic investigation. By examining various characteristics such as handwriting, ink, and paper, forensic document examiners can uncover valuable clues that shed light on the document’s origins and validity.

“Questioned documents come in many forms, each presenting its own set of challenges for forensic examiners. For example, when analyzing a disputed signature on a legal document, examiners meticulously compare the stroke patterns, letter formations, and overall style of the signature to known samples provided by the individual in question. Similarly, in cases involving altered documents, such as tampered checks or forged contracts, examiners use advanced techniques like ink analysis and magnification to detect signs of manipulation.”