Practical Guidelines for Lawyer in Document Forgery

Main Article Content

Laddamat Wangkahat


The objective of this qualitative research was to study the practical guideline of lawyer by interviewing lawyers who had experienced in document forgery cases. Ten lawyers were examined to obtain the information about work practices and factors affecting the reliability of the evidence examination for document forgery. The research results were found that the process for questioned document submission could be classified into two methods, submission by the investigation officer and submission by the court officials. The agency who took responsibility for the documentary evidence examination was the Questioned Document Examination Sub-division, Central Police Forensic Science Division, Royal Thai Police. Factors that affected the reliability of the evidence examination in document forgery cases were the official staffs and the organization to which the evidence was submitted. That was concerning the official engagement of qualified officers who protected and secured crime scene and evidence, where a chain of custody was in practice. Moreover, the organization in charge belonged to the government agency. Problems and difficulties with document examination included the lack of questioned document examiner. Work load was not balanced with the number of examiners, resulting in the delay of examination process. In order to improve the process of document examination, increasing the number of qualified examiners is proposed. Personnel training and development should be acknowledged for responding in the current technology and situation.


Download data is not yet available.

Article Details

How to Cite
Wangkahat, L. (2020). Practical Guidelines for Lawyer in Document Forgery. Journal of Criminology and Forensic Science, 6(2), 153-166. Retrieved from
Research Articles
Author Biography

Laddamat Wangkahat, Faculty of Forensic Science, Royal Police Cadet Academy

นักศึกษา หลักสูตรปริญญาวิทยาศาสตรมหาบัณฑิต

สาขานิติวิทยาศาสตร์ คณะนิติวิทยาศาสตร์




1.Central Police Forensic Science Division Royal Thai Police. (2013).Forensic Doument Examiation Section : Guidance for document submission. July 31 2019. from (In Thai).

2.The justice grop. (2011). Criminal code Revise. Bangkok. Pimasol. (In Thai).

3.Padawan, K. (2013). Prosecutor perpective underpinning per verification to forensic science : studies and documentation proofing only opposed to counterfeiting hangwriting and signature. Master of Science Thesis, Faculty of Science, Silpakron University. (In Thai).
3.Pakdeetanakul, J. (2018). Explain the witness law. 13th Edition. The Thai bar uader the Royal Patronage. (In Thai).

4.Tasniyom, J. (2015). Reliance of the lawyer and the Trainees in Practcei subiect on specialist in identification forgery. Master of Science Thesis, Faculty of Science, Silpakron University. (In Thai).

5.Velaves, J. (2012). Prosecution Guide Guidelines for Detention and Fighting Embezzlement. Bangkok. Nititum. (In Thai).

6.Tongputoon, M. (2018). Trust rert on the verification of the documents in Criminal forensic science estate fraud. Graduate School Conference, 403-410
(In Thai). Suan Sunandha Rajabhat University. (In Thai).

7.Jeeramongkolpanich, P. (2018). Law of Evidence Document. 4th Edition. Bangkok.
Duadtla publisher. (In Thai).

8.Suwannamut, A. (2013).Guidelines to develop work systems and promote trustworthiness of forensic document examnation and forgery : Case study of the inquiry officers attending proficient training couse series 1. Master of Science Thesis, Faculty of Science, Silpakron University. (In Thai).

9.Panwattana, P. (2017). The Signature Verification by Digital Signature Detection Program. Jounal of Criminology and Forensic Science, 3(1), 12-19 (In Thai).

10.Panwattana, P. (2017). The Handwriting Examinations shor in the Document. Jounal of Criminology and Forensic Science, 3(2), .28-36 (In Thai).

11.Panichayakui, P. (2012). Attachment of oerson the document without. Master of Laws Thesis, Facult of Law, Thammasat University. (In Thai).

12.Office of the Counil of State, (2011). Lawyers Act. July 31, 2019. from (In Thai).

13.Po]sik, A. Suebpongsiri, S. Chiyarangsinan, Ch. (2016). Applications of the ESDA in demonstrate handwriting and document examination for forensic science.
Jounal of Criminology and Forensic Science, 2(1), 45-59 (In Thai).

14.Boontongma, A. (2016). Exam guide Law of Evidence. Bangkok. Winyuchon. (In Thai).
15.Chamsuwan, A. (2003). Forensic Science 2 for Criminal Investigation. 4th Edition. Bangkok. G.B.P. Center. (In Thai).