Forensic Safety division is consist of Safety Analysis Laboratory, Fire Investigation Laboratory, Marks and Firearms Laboratory, and performs the analyzing and interpretation of accidents on the basis of physics and engineering science. Forensic safety division is working for more safe society.
Safety analysis laboratory investigates and researches the cause of disaster and safety accident such as electric, machinery, gas and structure collapse accidents. High technology equipments are utilized to fulfill the analysis of accident, for example, FE-SEM, Spark-Emission Spectrometer, Metallographic Microscope, Advanced Indentation Tester, Universal Tensile Tester, Micro Vickers Hardness Tester and Scanner are used. Furthermore, advanced techniques and system are on the improve preparing for increasing complexity of cases. FEM and CFD analysis are used for safety accident analysis, and Midas Gen & Civil program is utilized for structure collapse analysis.
|Fractography||structure Collapsed accident investigation|
|FE-SEM||Collapsed structure analysis|
Fire Investigation Laboratory discover the origin and the cause of fire by investigating the fire scene and examining the evidence from the scene. In addition, research on ignition mechanism and the fire pattern analysis are ongoing. Optical microscope, 3D X-ray, FE-SEM, infrared camera, Spark-Emission Spectrometer are used for analysis. Furthermore, we are not only making progress in various research subjects but also introducing up-to-date technologies for more effective and accurate analysis.
|Optical microscope examination||X-ray examination|
|FE-SEM analysis||Fire scene investigation|
Firearms and Explosives Laboratory is in charge of analysis of firearms and explosives. The detailed tasks of firearm and explosive analysis are divided into several groups; identification of criminal firearm by analyzing shooting mark of guns, determination of the direction and the location where the projectile fired by analyzing flight path of projectiles, interpretation and reconstruction of scene, identification of explosive type, chemical test of explosive. Forensic Comparison Microscope, Oehler 57 bllistic chronographs, FE-SEM, GC-MS, HPLC are utilized for analysis.
|Forensic Comparison Microscope||Comparison of firing pin mark with comparison microscope
(Left : test cartridge from suspected firearm,
Right : empty cartridge from the scene)
|Investigation of trial manufactured tank turret explosion||Explosion Scene investigation
(Explosion accident of antitank munition propellent factory)
The mark analysts analyze the morphological trace evidence such as suspected tools and tool marks, the patterns of damaged glass, foot and finger prints, fire patterns found in criminal scene. Especially when suspected tool was obtained, tool mark from the scene can be compared to the suspected tool, and then, it can be determined whether the tool actually used when the crime occur or not.
|Various tools and deadly weapons commonly used in crime scene||Comparison the damage mark on can lid to the suspected screwdriver|
|Matching the striations on the cut surface of copper cable and the test mark made by suspected tool||Analysis of the cut surface of copper cable with 3D microscope(Infinite Focus Microscope)|
|Impact spatter pattern formed when bleeding part of victim is hit again by criminal tool||Swing cast-off patterns produced when swing the bloodstained knife|
|Results of simulation that calculate the origin of impact spatter pattern applied on 3D scene drawing||3D drawing and behavior reconstruction using the information from bloodstain pattern.|