Graphoscopy is the part of document examination that aims to identify the authenticity or authorship of handwriting. Graphoscopy exams are conducted through the comparison between the questioned signature and the known signatures, which must meet certain requirements to allow for an adequate evaluation of the handwriting.
Known signatures must meet the requirements of contemporaneity, spontaneity, suitability, and quantity. Contemporaneity refers to the temporal proximity between the date of production and the date the questioned document was supposedly signed, and spontaneity is related to the natural act of writing, an unconscious action of the writer. Suitability is the correspondence between the graphic patterns and the questioned handwriting, and quantity refers to the number of repetitions of the handwriting that will constitute the graphic patterns, allowing for the identification of variations in the writer’s script.
IBPTECH prepares technical reports and opinions on graphic authenticity and graphic authorship and also acts as technical assistants in legal proceedings that involve the evaluation of signature and document authenticity, providing technical support to legal professionals at all stages of the process.