Handwriting recognition can have high accuracy if there are many words, but it will be very low if there are few words. Moreover, the accuracy of handwriting recognition is high for people with mature writing, but low for people with little writing. There are too many technologies needed, and they are also greatly affected.

From a legal point of view, handwriting identification can only be used for reference by the court in the trial process, and generally cannot be used as direct evidence. We should combine other evidence to see if we can form a chain of evidence. Similar evidences include bone age identification, video and audio materials, because these evidences are not unique and exclusive. At present, with the support of academic theory, all countries recognize the uniqueness and exclusiveness of fingerprints.

Notes for handwriting identification:

Unknown source of samples (there are samples or the source of samples is unknown): samples and samples should be extracted in strict accordance with legal procedures, and corresponding extraction records should be made according to law to ensure that the samples and samples used for identification are clear and legal, and there is evidence to prove them.

Handwriting identification samples don't use originals: In handwriting identification, if the contrast samples submitted by the entrusting applicant are copies, although the line and stroke features and Lian Bi features in the stroke characteristics can be retained, the inherent layering of the original handwriting will be lost, which will also bring adverse effects to handwriting identification.