Because of great number human activity that a human might be involved in a crime or at a crime scene, the quantity of physical material that could be use as physical evidence is almost non detectable with human eye. These evidences may be microscopic in character, such as DNA or a tiny particle of human body like skin, semen or hair and some time quite like a motor vehicle left behind at the scene, weapon at spot of occurrence etc. Forensic evidence and physical evidence provide the most of the era in which forensic expert (Physics), also known as scientists, can explain his/her expertise with using fundamental physics. Directly fundamental physics having a great contribution in the field of forensic science via ray optics, laser sources and modern physics and many more. Instrumentation like optical microscope, the electron microscope, the mass spectrometer, and optical spectrometers (optical physics); but directly, physical sciences role in forensic science has been used very few scientist due lack of education. Forensic physics in crime labs have been traditionally involved the measurement of density (soil and glass examination), index of refraction, and birefringence (fiber anal

Dr. Mukesh Sharma (M.Sc. Ph.D. (Physics), DCA, BAFS, M.Sc (Psychology) is Assistant Director (Phys. Div.) State FSL, Jaipur (Raj.) India. Joined as SSO in 2008, he has visited 630 Crime scene, reported 600 cases in court testimony. He has published more than 130 articles. He has been awarded by DST, CSIR, UGC and AICTE and many more for his work.