© D.L. Crumbley
Martha Stewart was undone by a blue ballpoint pen.
Stockbroker belatedly inserted a note to help cover up Ms. Stewart’s improper stock trading. Blue ballpoint ink used is different from ink elsewhere on the trading worksheet.
Prosecutors used forensic ink analysis in Rite Aid case to show that certain documents were backdated (ink used to sign letter was not commercially available until 3 months after the letter was dated).
Xerox laser printers now encode the serial number of each machine in tiny yellow dots in every printout, nestled within the printed words and margins. It tracks back to you like a license plate.
Fraudsters: use pencil.
Source: Mark Maremont, “In Corporate Crimes, Paper Trail Often Leads to Ink Analysts’ Door,” Wall Street J., July 1, 2003, p. A-1.