Problems of Forensic Sciences 2001 Vol. 47 (XLVII) 387-390
SEQUENCE OF ELECTRO-PHOTOGRAPHIC PRINTING AND BALLPOINT PEN WRITING
Marion SEITZ, Michael REINHARD, Thomas ANDERMANN
Bundeskriminalamt, Wiesbaden, Germany
Streszczenie
Electro-photographic copiers and printers randomly spread small toner-particles all over the paper, independent from applied writings. The appearance of toner-particles is different, if they are overwritten by ballpoint pen ink or vice versa. Therefore, it is possible to determine the sequence of writing and printing in the absence of an actual line-crossing.
Słowa kluczowe
Sequence of writing and printing; Toner-particles; Ballpoint pen inks; Microscopy.