Physics

In this division examination of “trace evidence” materials like soil, paint, glass, metal, fiber, the examination of tool marks and restoration of erased numbers/marks, etc. in murder, theft, vehicle accident, and other cases is done. For the examination of these exhibits the instruments like Atomic Absorption Spectrophotometer, SimultaneousThermal Analyzer(STA), and Energy Dispersive X-Ray Spectrophotometer (EDXRF) are used. Video SpectralComparator (VSC-8000) is used for the examination of ink on forged documents like duplicate currency notes, fake stamps, stamp papers, lottery tickets, certificates, and bank cheques.