I was lucky to have taken a class in Fraudulent Documents when I was a detective. I found the entire subject riveting (really). Back at my agency, I get requests to examine currency for the officers when they are on counterfeit calls. I try to pass along some basics to the patrolmen, because there are a few shortcuts to identifying real money from fake.
Quick ground school on the Federal Reserve Note: “Paper” currency is made from 75% cotton and 25% linen. To be durable and hard to reproduce, U.S. currency is more cloth than traditional paper, which is made largely from wood cellulose.
The counterfeit pens you see used by stores have an iodine-based ink that reacts with the starch in cellulose-based paper to leave a black marking on a fake bill. The iodine does not react with the cotton/linen blend of real bills, so the pen leaves an amber, yellow, or light brown swipe. Because counterfeiters can coat regular paper with chemicals to block the Continue reading



NavElite LLC









