DANIEL POTOLINCA, IOAN CRISTINEL NEGRU, VIORICA VASILACHE, CECILIA ARSENE, MARIUS PADURARU, ION SANDU FORENSIC EXPERTISE OF THE PAPER SUPPORT OF COUNTERFEIT DOCUMENTS The paperwork presents the results of the examination of the paper support from travel documents, by analysing the composition of the biodata page, which where differently falsified. For this purpose, the computer analyzed the composition of the tab, which is usually through various kinds counterfeit. By taking very small fragments of these pages, we can get useful information about the methods and techniques used by counterfeiters. The comparative analysis highlights the forgeries and certain connections with the original document. Therefore, there were obtained some data on their scientific investigation and highlighted the method used by forgeries.