Is there a time limit for the identification of two materials written by the same person?

In legal and judicial practice, whether two materials are written by the same person is usually analyzed and judged according to font similarity and stroke characteristics. There is no strict time limit for font recognition, but there are different recognition methods and technical means at present, and many factors need to be considered comprehensively when recognizing.

The methods of font recognition include calligraphy recognition, document recognition and technical recognition. Calligraphy appraisal is the evaluation and appraisal of the artistry of calligraphy works, mainly considering the characteristics such as style and strokes; Document recognition is to analyze and compare the contents of handwritten documents; Technical appraisal is the use of scientific and technological means, such as computer font analysis.

Due to the limitation of time, the effectiveness of evaluation is usually affected by time factors. With the passage of time, people's writing styles and fonts may change, and there may be differences due to factors such as age and health. Therefore, in identification, the time range of the identified substances is usually compared to obtain more accurate results.

It should be pointed out that it is a professional problem to judge whether the font is written by the same person, which needs professional appraisers to judge. You can consult relevant authorities or professional judicial institutions to get more authoritative answers.