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Government Of Assam Home & Political Directorate of Forensic Science

Instruments Used

Scanning Electron Microscope (SEM) with Energy Dispersive X- Ray Analyzer (EDX)

SEM can magnify any object 2, 00,000 times as magnifying power of 1000 times of a conventional microscope. SEM is useful to study the morphological, surface characteristics by scanning the surface of any tiny sample such as pollen, gun shot residue, dust, fibres, hair, tool marks, explosion residue, metallic fragment etc.The built - in computer has the capacity to store a large number of micrographs of samples for reference and subsequent comparison. The elemental composition of the sample can be instantly checked with X-ray Micro-analyzer simultaneously.

Gas Chromatograph coupled with Mass Spectrometer (GCMS)

While the GC facilitates separation of various constituents of organic compounds like poisons, narcotics, explosives and other chemical substances, the MS identifies the separated components by means of their molecular weights and fragmentation patterns for unequivocal and absolute identification. The built-in computer library of compounds facilitates this identification fast.

Gas Chromatograph coupled with Mass Spectrometer and mass Spectrograph (GCMS-MS)

The separated organic compounds in GC are first subjected to Mass Spectrometer and the similar fragmented parts are further subjected to mass fragmentation. Thus structural elucidation can be done with un-ambiguity. This instrument can be used in the analysis of Drugs and Narcotics, Explosives, Pesticides and poisons.

Raman spectrometer

Raman Effect has been used in this instrument to study molecular structure of different compounds and thereby identify the chemical compound. This instrument is especially useful in analysis of Explosive residues and Drugs.

Universal Testing Machine (UTM)

Testing of mechanical properties like bending, stretching, tensile strength, compression strength etc., of wide range of metallic, engineering and building materials in case of failure of structures, machines and accidents of road, train or air.

High Pressure Liquid Chromatograph (HPLC) with Diode Array Detector

Separation, identification and quantification of nonvolatile, thermolabile samples in drugs, narcotics, explosives, dyes, cosmetics, polygrams, plant products etc.

High Performance Thin layer Chromatograph (HPTLC)

For separation and screening of multiple compounds into their constituents and identifying them in the case of poisons, narcotic drugs , explosives, plant products etc.

Gene Cycler/ PCR & Gel Documentation System

To amplify small quantities of DNA from skeletal remains, tissues, blood stains, seminal stains, hair roots etc so that the amplified DNA can be further studied by means of STR analysis to obtain the DNA profile of an individual.

DNA Sequencer / STR Analyzer

For analysis of PCR amplified biological specimens such as blood, semen, saliva, skin tissues for identification of the individuals in case of human samples and matching of species in case of plant and animal origin.

Forensic Comparison Microscope

For comparison of two objects simultaneously through two objectives and eyepiece for side by side comparison for matching the parameters such as bullet marks, finger print marks, hair, medulla etc.

Forensic Computer Work Station with Software

For imaging, retrieval and analysis of data relating to crimes committed using computer as a means of storage, manipulation, unauthorized reproduction, creation of pirated software and other computer related frauds and also recapture the data from erased or deleted files to prove the unauthorized use, abuse or misuse of computers.

Video Spectral Comparator (VSC 5000, VSC 6000)

To examine and compose the specimens such as handwritings, erasures, alterations on documents as well as study of counterfeit currency stamps, stamp impressions etc. under light of different wavelengths for clear differentiation.

Docucenter 3000, Docuexpert

To examine handwritings, erasures, alterations on documents as well as study of counterfeit currency notes, judicial stamp paper, stamp impressions etc. under light of different wavelengths for clear differentiation.

X-Ray Fluorescence Spectrometer (XRF)

Fluorescence effects found on impingement of X-rays on various types of objects such as spurious ornaments, metals, counterfeit currency etc. for determining the elementary make-up of samples.

Digital Densitometer & Digital Flash Point System

For instantaneous measurement of density of liquids like fuel oils, detergents and solids like glass, plastics etc., and for instantaneous determination of flash point of liquids such as fuels, lubricants etc.

Liquid Chromatography interfaced with Mass Spectrometry (LCMS)

The separated compounds from chromatography are further subjected to mass spectrometry and from the mass fragmentation pattern a compound can be identified in this instrument. It is used in analysis of Drugs and narcotics, poisons, pesticides and other chemical compounds.

Video Forensic Workstation

Video Forensic Workstation with Amped FIVE forensic Video Enhancement software is used for Forensic Video Analysis. Amped FIVE is the image processing software designed for investigation, forensic and security applications. It provides forensic scientists a complete and unique solution to process and analyse digital images and video data in a simple, fast and precise way.

Computerized Speech Laboratory

Computerized Speech Laboratory is an advanced acquisition analysis system with robust hardware for data acquisition complemented by versatile suite of software for speech analysis and Forensic check.

Mobile Phone Analyzer

This device equipped with latest software can be used in the analysis of data stored in mobile SIM card as well as mobile handset. It is useful in restoration and retrieving data that has been erased from the memory of mobile phone.