Fundamental Physics used in Forensics

Abstract

Forensic sciences deal with the application of scientific knowledge to legal problems and are vital tools for unearthing the truth in any legal proceeding. In some subareas of forensic science, for example, physical sciences and various engineering disciplines, including mechanical, electrical, and chemical engineering, and fire science, are also involved in forensic investigations, often in civil cases, but also in criminal investigations. Crime scene expert must be able to apply the techniques of the physical sciences and biological sciences, while examining evidence at scene of occurrence or in lab, with the goal to prove the existence of a crime scene and to connect suspects to the crime in the court of law. The evidences the forensic scientist collects at scene of occurrence handed over to investigating authority should be submitted with proper way means maintaining chain of custody [1,2] in the court of law. In the field of forensic science is dominated by the fields of chemistry (mainly drug and toxicology) and biology (serology and DNA profiling). But due to the wide range of physical evidence, the forensic experts often specialize in a particular area with master or doctoral degree. But this all, no matter what the specialty an expert has, he/she must be able to examine, analyze, identify, and interpret physical evidence collected from the scene of occurrence.