01 February 2007, Volume 0 Issue 1

    

• Select all
  |

• Select
  The accreditation and quality control for forensic DNA profiling laboratory

  LIU Bing, CHEN Song, LI Wanshui

  Forensic Science And Technology. 2007, 0(1): 3.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  The accreditation provides the forensic DNA profiling laboratory a domestic and international proof of quality management and technical ability. In this paper, the questions encountered in the accreditation of forensic DNA profiling laboratory was analyzed and the documents system, measurement traceability, methods validations, quality assurance and quality control of DNA labortory were discussed.
• Select
  The development of latent fingerprint on mirrory surface using polarization photography

  LI Xin, WANG Guiqiang

  Forensic Science And Technology. 2007, 0(1): 7.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  ObjectiveTo explore a method to develop latent fingerprint on mirrory surface. MethodPolarization photography was used to develop latent fingerprint on mirrory surface. ResultTo compare with the directional reflection photography and darkfield photography, polarization photography is better than the other methods. ConclusionPolarization photography can effectively increases the contrast and eliminates interference function of the object background.
• Select
  Analysis of inorganic explosives by using XRD

  LIU Dong，QUAN Yangke，TAO Keming

  Forensic Science And Technology. 2007, 0(1): 9.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  The method using XRD to detect and analysis the inorganic explosive can give the molecular formula of each component in mixture directly. Compared with traditionary method,it is of expicite conclusion and easy operation,and don't destroy the sample.
• Select
  DNA typing from hydatidiform mole tissue in one rape case

  TU Zheng, XUAN Yanhua, LI Peng, et al.

  Forensic Science And Technology. 2007, 0(1): 14.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  ObjectiveTo discuss the result of DNA typing for a hydatidiformmole sample in one rape case. MethodA hydatidiformmole tissue sample and a blood sample of the victim were typed by multiplex STR typing with Identifiler kit. Results The tissue sample from the hydatidiformmole is homozygous in all 15 loci. This is CHM fertilized by single sperm. ConclusionThere are different hydatidiformmole types that producing various kinds of STR genotypes. More attention should be paid in case works.
• Select
  Study on identification of fingerprints transferred by plastic film to paper

  JIANG Lan

  Forensic Science And Technology. 2007, 0(1): 14.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  ObjectiveTo research the characteristics and identification of fingerprint transferred by plastic film. MethodOne hundred and twenty experiments of transferring fingerprints to paper with various plastic films were made. These fingerprints transferred were compared with ordinary fingerprints. ResultThere were fortyone legible fingerprints in experiments. The characteristics of fingerprints transferred were found. ConclusionThe fingerprints transferred can be identified by means of discerning their characteristics.
• Select
  The marks examining methods for several kinds of common keys after being copied

  BAI Yanping, WANG Mingzhi, BAN Maosen, et al

  Forensic Science And Technology. 2007, 0(1): 16.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  ObjectiveTo analyze the copied marks on the several kinds of common keys. MethodThe marks on the keys are examined under the microscopy. ResultThe copied marks can be found. ConclusionThe copied marks can be identified
• Select
  The qualitative analyse of ketamine in the blood by GC/MS/MS

  LUO Fang,LIU Ying

  Forensic Science And Technology. 2007, 0(1): 19.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  In this paper, the GC/MS/MS was applied to analyze Ketamine. When the parent ion was m/z 180 and the exact CID voltage was 0.5v,the result was satisfactory. It showed that the GC/MS/MS is more fast, sensitive and accurate than GC/MS.
• Select
  Estimation of stature and avoirdupois by measurement of fingerprints and footprints

  LI Li， WANG Liping, LIU Zengfeng

  Forensic Science And Technology. 2007, 0(1): 22.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  ObjectiveTo find the correlation between stature, avoirdupois and the length or width of footmark and fingerprint. Method866 people were investigated by measuring the length and width of their fingerprints and footprints, stature, and avoirdupois. Then all data was input into a computer and analyzed by means of SPSS 110. ResultsThe length of the footprints or fingerprints was positively and highly correlative to the stature (p<0001).Four regression equations were established for estimating the stature form the length of the fingerprints and footprints. And six equations were established for avoirdupois from their width. All equations were significant (p<0.001). ConclusionThese equations can be used to estimate stature or avoirdupois of some people. The estimation of stature according to right fingerprints or footprints is more credible, and the estimation of avoirdupois according to left footprints is more credible.
• Select
  Fast detection of ketamine in urine by HS/SPMEGC/NPD

  LIAO Jinyu，HUANG Kejian，LI Lu, et al.

  Forensic Science And Technology. 2007, 0(1): 25.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  ObjectiveTo establish a HS/SPMEGC/NPD analysis method for fast determination of ketamine in urine of drugger. MethodA sample vial containing the urine sample，sodium hydroxide and sodium chloride was heated at 95℃. A polydimethysiloxanecoated fiber of the SPME was maintained in the headspace of the vial for 25 minute to allow adsorption of the drugs. The drugs absorbed on the fiber were detected by GC/NPD using external standard method. ResultsKetamine in urine show linearity in the rang of 0.220.0μg/ml(r2=0.9965). Recovery of the ketamine adding 1.0μg in urine was 102.6%. Relative standard deviation (RSD) was 3.39% (n=7). The limits of detection (LOD) (s/n=3) was 1.13ng/ml. ConclusionThis method is simple，frequent，sensitive，accurate，and is suitable for qualitative and quantitative analysis of ketamine in urine.
• Select
  Progress in age estimation based on molecular biology

  YIN Hui, ZHAI Xiandun, HUANG Daixin

  Forensic Science And Technology. 2007, 0(1): 27.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  The traditional way of age estimation in forensic science is mainly through morphology on human tissue, such as skeleton and teeth, it isn't accurate and unfeasible to deal with some special biomaterial left at crime scene. With the development of cytobiology and molecular biology, some biology markers that have great correlation with age are found at the cell and molecular level, and a new concept “molecular age” is put forward, these offer new techniques for carrying on age estimation in relevant disciplines.
• Select
  The application of atomic fluorescence spectrometry in metal poison identification

  LIU Yingzi, WANG Chengxiang, LI Yange

  Forensic Science And Technology. 2007, 0(1): 30.

  Abstract ( ) Download PDF ( ) Knowledge map Save

  Atomic fluorescence spectrometric method is one of rapidly developed analytical method.This article gives a review on atomic fluorescence spectrometry, including the principle,operating modes and application prospect in metal poison indentification.