Food forensics is a multi-disciplinary science involving advanced analytical techniques, plant and animal metabolism, and sophisticated data interpretation tools. This book explains how plants, and in turn animals eating those plants, assimilate stable isotopes and trace elements from their environments. It provides extensive reviews of the use of stable isotope and trace element measurements for the authentication of major food groups and how these can be used to detect fraudsters. The book emphasises the use of correct methods for sample preparation and measurement so that data can be compared to existing datasets, with a dedicated chapter discussing interpretations.