The work in the physics division involves the examination and comparison of physical clue materials, which commonly include

• Tools and tool marks
• Examination of paint and glass
• Examination of fibers, fabrics, rubber, plastic and polythenes
• Examination of identification marks
• Comparison of soil samples
• Examination & physical fit of broken objects
• Examination of foot / footwear / tyre impressions
• Examination of electrical cables / wires / energy meters
• Examination of stoves / ovens.
• Examination of counterfeits of originals
• Examination of road crashes
• Examination of scene of fires
• Examination of fall from a height.

• Post-mortem report should be forwarded for cases of death by fall from height and any death in motor vehicle crash.
• The death by falling from roof / height, the point of contact on the ground should be identified and the photograph of the dead person lying on the ground should be taken.
• At the scene of road accident, the skid mark of tyres on the road surface should be measured and photographed.
• Tyre impression on the body or wearing apparels of any victim person should be preserved and photographed.
• Foreign elements like glass, fibre parts, etc. that are lodged in any victim's body during accident should be collected and preserved. Control Samples of the same should also be forwarded along with the above.
• Exchange of paints from one vehicle to another vehicle's surface should be searched, preserved and photographed.
• For soil and dust examination, the control as well as questioned soil / dust should be collected in sufficient amount and should be clearly marked and distinguished. In case of any presence of blood, it should be mentioned without fail.
• For deaths by hanging the knot used for hanging should be kept intact and preserved and P.M. report should be sent.
• For studying mark of violence of wearing apparels, the questioned weapons if found should also be forwarded to the FSL.
• For Copy Right Act cases / T.M. Act cases proper control samples i.e. the original of the counterfeits should be sent along with the questioned samples.