scholarly journals World List of Forensic Science Laboratories

Nature ◽  
1963 ◽  
Vol 199 (4891) ◽  
pp. 317-317
Author(s):  
R. A. OUTTERIDGE
Keyword(s):  
Forensic Science ◽  
Science Laboratories ◽  
World List

Practice of offender profiling in Japan

2017 ◽  
Vol 19 (3) ◽  
pp. 187-194 ◽  
Author(s):  
Kaeko Yokota ◽  
Hiroki Kuraishi ◽  
Taeko Wachi ◽  
Yusuke Otsuka ◽  
Kazuki Hirama ◽  
...  
Keyword(s):  
Forensic Science ◽  
National Survey ◽  
Prediction Accuracy ◽  
Current Situation ◽  
Demographic Characteristics ◽  
Statistical Analyses ◽  
Offender Profiling ◽  
Police Investigations ◽  
Science Laboratories ◽  
Crime Linkage

The main aim of this study was to determine the current situation of offender profiling in Japan. In addition, the accuracy of crime linkage and inferring offenders’ profiles were examined. To evaluate offender profiling comprehensively, we conducted a national survey of 156 people responsible for offender profiling between 2011 and 2012 to obtain their demographic characteristics and experience related to profiling. Furthermore, we also used a sample of 296 resolved cases to examine the content of profiling and the accuracy of predictions in offender profiling. The results of the statistical analyses revealed that police professionals from various backgrounds were engaged in profiling in Japan; 76% were police investigators, and 19% were professionals at forensic science laboratories engaged in psychological work. Regarding the utilization of profiling results in police investigations, 46% of profiling ‘led to identification of offender’. As for prediction accuracy, the rate of linkage errors (i.e. where profilers could not correctly link incidents even when they knew of the occurrence of these incidents) was 15%. Accurately inferring an offender’s profile was found to be between 72% (means of transportation) and 100% (sex). We also discussed the challenges faced by the police who practise offender profiling in Japan.

Medical Technologists in Forensic Science Laboratories in the United States

1991 ◽  
Vol 22 (1) ◽  
pp. 40-44
Author(s):  
Richard O. Pfau ◽  
John R. Snyder ◽  
Sally V. Rudmann ◽  
Joseph E. Scott
Keyword(s):  
United States ◽  
Forensic Science ◽  
The United States ◽  
Science Laboratories ◽  
Medical Technologists

scholarly journals Restoration of Obliterated Stamped Marks on Aluminium Surfaces by Metallographic Etching Technique

2020 ◽  
Vol 36 (6) ◽  
pp. 1212-1217
Author(s):  
Amit Kumar ◽  
Ankit Srivastava ◽  
Tanurup Das ◽  
Abhimanyu Harshey ◽  
Veer Raj Saini ◽  
...  
Keyword(s):  
Forensic Science ◽  
Ferric Chloride ◽  
Present Experiment ◽  
Chemical Etching ◽  
Simple Technique ◽  
Distilled Water ◽  
Metallic Surfaces ◽  
Etching Technique ◽  
Restoration Process ◽  
Science Laboratories

Serial number restoration is a frequently encountered problem in forensic science laboratories for the investigation of theft and burglary cases. These identification marks are generally introduced over metallic surfaces of different vehicle parts and firearms by various means. Chemical etching is one of the most effective and simple technique to restore obliterated, erased, over-stamped and over-engraved marks on metallic surfaces. Several significant studies on restoration of engraved markings on aluminium surfaces were previously reported. The present study attempts to find out an efficient and fast etching reagent to restore obliterated stamped marks on aluminium surfaces. Ten effective etching reagents previously reported by various researchers in their restoration studies were assessed in the present experiment. Etching reagents were individually applied on obliterated surfaces by the cotton swabbing method. The Reagent 3 (ferric chloride 25 g, conc. HCl 25 mL, distilled water 100 mL) was found out to be the most sensitive and rapid (4–6 min) for the restoration on aluminium surfaces. The study also revealed that the absence of an alkaline compound in etching reagent potentially accelerates the speed of the restoration process.

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