Books by Nicholas (John Jay College Petraco

Impression evidence can be broadly defined as the transfer of an object's physical morphology in the form of an imprint onto the surface of softer substance. Forensic scientists encounter various forms of impression evidence on a routine basis. This book focuses on marks made by tools.

Although methods and techniques that will help solve various analytical problems do exist, they are often difficult to perform. Using polarized light microscopy as the method of choice, this text offers swift, simple analytical tests and testing procedures that can be used to identify organic and inorganic particles.