With the help of stable isotope analysis even the very atoms from which a body is made can be used to say something about a person that will help to focus human identification efforts using traditional techniques such as DNA, fingerprints, and forensic odontology. Stable isotope profiling exploits subtle biochemically driven variations in isotope abundance of chemical elements such as carbon (C) or hydrogen (H). While 13 C isotope abundance in body tissue is a reflection of dietary intake, 2 H isotope abundance values recorded by the human body through food and drink ultimately reflect averaged isotopic composition of regional precipitation. Analysis of 2 H, 13 C, 15 N, and 18 O isotopic composition in tissue such as hair, nails, bone, and teeth enables us to reconstruct a time-resolved isotopic 'profile' that may not necessarily permit direct identification of a victim but in conjunction with forensic anthropological information will provide sufficient forensic intelligence to construct a profile for intelligence lead identification stating based on provenance and immutable anatomical markers. In addition, law enforcement agencies and immigration control only have limited means at their disposal to establish the actual country of origin of a person or to check on the veracity of statements made by a terrorist or terrorist suspect about geographical origin and recent geographical movement. A technique that would help to determine recent life history of people detained either on suspicion of terrorism or of having gained entry to the UK illegally would be a very valuable tool. Data from several criminal investigations are presented to illustrate potential and limitation of stable isotope analysis of human tissue in aid of victim identification and detection of recent geographic movement.