CHAPTER XX

TAMPERED, ERASED AND MANIPULATED PAPER

Sure Rules for the Detection of Forged and Fraudulent Writing of Any Kind--European Professor Gives Rules for Detecting Fraud--How to Tell Alterations Made on Checks, Drafts, and Business Paper--An Infallible System Discovered--Results Always Satisfactory--Can Be Used by Anyone--Vapor of Iodine a Valuable Agent--Paper That Has Been Wet or Moistened--Colors That Tampered Paper Assumes--Tracing Written Characters with Water--Making Writing Legible--How to Tell Paper That Has Been Erased or Rubbed--What a Light Will Disclose--Erasing with Bread Crumbs--Hard to Detect--How to Discover Traces of Manipulation--Erased Surface Made Legible--Treating Partially Erased Paper--Detecting Nature of Substance Used for Erasing--Use of Bread Crumbs Colors Papers--Tracing Writing with a Glass Rod--Tracing Writing Under Paper--Writing With Glass Tubes Instead of Pens--What Physical Examination Reveals--Erasing Substance of Paper--Reproducing Pencil Writing in a Letter Press--Kind of Paper to Use in Making Experiments--Detecting Fraud in Old Papers--The Rubbing and Writing Method