The cost varies from province to province. Handwriting identification needs a special organization, and the cost is generally between 800 and 2000 yuan. Handwriting identification is a special technology to identify the writer according to the characteristics of people's writing skills and habits, as well as the reflection in writing and painting. The main task is to prove whether the handwriting on the documentary evidence is the same person's handwriting and whether the handwriting on the documentary evidence is the suspect's handwriting through the same handwriting identification test. Handwriting identification can not only test normal handwriting, but also test writing situation.

(including writing posture, writing tools, pad, etc. ).) Change handwriting, deliberately disguise handwriting (including left-handed handwriting and ruler handwriting), imitate handwriting, and draw handwriting. When the same person writes with the same pen, the characteristics of pen marks can also be used to enrich the basis for identifying the writer.

First, the judicial handwriting identification

Preparatory inspection stage

Acceptance is the preparatory work done by the appraisal department in the initial inspection stage. When accepting the evaluation submitted by the entrusting unit, we should pay attention to the following work:

(a) to understand the case, clear inspection requirements.

That is to ask the inspector about the occurrence, discovery and investigation of the case. The purpose of knowing the case is to determine the nature of the case and decide whether to accept the appraisal. The second is to clarify the relationship between handwriting evidence and cases, and make objective and scientific appraisal of difficult problems in combination with cases. Generally speaking, when accepting the appraisal, inspectors should know the following contents:

(1) case, that is, the time, place and discovery process of the case.

(2) The development of investigation mainly includes the judgment of the scope and basis of the crime, and what is the suspect's suspicion basis.

(3) the situation of the criminal suspect, that is, to know his age, native place, occupation, education, social experience, personal hobbies, usual performance, etc. A photo of the suspect. It's easy to determine how much disguise he has.

(4) Identification and verification of physical evidence, that is, to know whether the handwriting physical evidence submitted for inspection has been tested by other departments, and what is the conclusion and basis of the identification? In addition, we also need to know the investigation and identification of other physical evidence in the case, such as paper, writing tools, fingerprints, footprints and other traces left at the scene.

(5) Identify the identification requirements, that is, ask the inspectors to know what problems need to be identified and solved, and agree and modify the identification requirements according to the handwriting evidence and samples when necessary.