Methods of Forgery in Counterfeit Travel Documents
P. K. Ng, W. S. Hui, Joyce L. C. Chim, Chi-Keung Li, N. L. Poon · Journal of the American Society of Questioned Document Examiners · 2004
With rapid developments in international travel, fraudulent travel documents used by illegal immigrants and criminals are frequently encountered by document examiners in Hong Kong. As the methods of forgery display certain consistent trends for a particular type of forged travel documents, the discovery of evidence of tampering or alteration on these documents is not a random process but is often targeted towards specific aspects of forgery. This article describes some of the target examination of some types of passports encountered in the authors’ laboratory, namely, the People’s Republic of China (PRC), Hong Kong Special Administrative Region, People’s Republic of China (HKSAR PRC), Canadian, Korean, and the Philippines.