The issue you mentioned involves forensic identification of the time when the document was formed.
The so-called forensic identification of document formation time refers to determining the absolute or relative formation time of a suspicious document through physical or chemical methods, thereby determining the authenticity of the document.
Document formation time refers to the time range when the form and content of the document are formed, including the writing time of the document, the printing and printing time of the document, and the production time of the material material of the document.
There are usually two situations for document formation time inspection:
The first is to determine when a certain document or part of a document was produced;
The second is to determine whether a part of a document and the original text or certain documents were produced at the same time.
The provisions of the "Notice on Matters Concerning the Appraisal of the Creation Time of Externally Entrusted Documents" issued by the Judicial Administrative Equipment Administration Bureau of the Supreme People's Court.
The judicial technicians of the People's Court should review the appraisal conditions of the entrusted case and the qualifications and capabilities of the appraisal agency. If the time of signing and the time of suspicion exceed six months, the unit submitting the case must provide a comparison. sample.
Since the differences in paper, ink, ink, storage environment, etc. between the inspection materials and samples will have a decisive impact on the identification results, it is impossible for the samples prepared by the identification institution to meet the requirements of the paper types of the materials submitted for inspection. and color.
The main components of ink, ink colorants and dyes, and the temperature and humidity of the storage environment are the same.
Therefore, the self-prepared samples of the appraisal institution cannot be used for document creation time appraisal.
To sum up, if you suspect that there is something wrong with the time when the IOU was written in pen, you can entrust a competent forensic appraisal agency to identify the time when the document was formed.
You will know if it is true or false.
Extended information:
Forensic appraisal refers to the activity in which appraisers use scientific technology or professional knowledge to identify and judge the specialized issues involved in litigation and provide appraisal opinions in litigation activities.
In other words, judicial appraisal means that during the litigation process, the judicial authorities or the parties entrust a legal appraisal unit to use professional knowledge and technology to make identification and judgments in accordance with legal procedures for specialized issues in the case. an activity.
In September 2018, the Ministry of Justice and the State Administration for Market Regulation jointly issued the "Notice on Standardizing and Promoting the Certification and Accreditation of Forensic Identification".
It is stipulated that by the end of 2019, forensic identification institutions engaged in the identification of forensic evidence, forensic poisons, trace evidence, and environmental damage must have a certified and accredited testing laboratory.
Persons who meet one of the following conditions can apply for registration to engage in forensic identification business:
(1) Have senior professional and technical titles related to the forensic identification business they are applying for;
(2) Have a professional qualification related to the forensic identification business you are applying for or a bachelor’s degree or above in a relevant major from a higher education institution, and have been engaged in relevant work for more than five years;
(3) Have more than ten years of work experience related to the forensic identification business you are applying for, and have strong professional skills.
Persons who have been criminally punished for intentional crimes or official negligence crimes, who have been dismissed from public office, and whose registration as appraisers have been revoked shall not engage in judicial appraisal business.
A legal person or other organization that applies to engage in forensic identification business must meet the following conditions:
(1) Have a clear business scope;
(2) Have Instruments and equipment necessary for conducting forensic identification within the scope of business;
(3) Having a testing laboratory that has passed metrological certification or laboratory accreditation in accordance with the law and is necessary for conducting forensic identification within the scope of business;
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(4) Each judicial appraisal business shall have more than three appraisers.
Reference material: Baidu Encyclopedia-Forensic Appraisal