The evaluation of any forensic technique is dependent upon the detection, observation, measuremen... more The evaluation of any forensic technique is dependent upon the detection, observation, measurement and validation of data through experimentation. The credibility of forensic science has suffered in the past due to bad science. It continues to suffer until this day as there hasn't been much change in methodology, application, practice and research. The work carried out by the criminal justice community during investigations in crime scenes has unfortunately been on the basis of a hit-and-trial method. Forensic sciences and especially bloodstain analysis need to move more towards a scientific foundation and standardization to have a better foothold in the scientific community. This article will review the components of blood, basic principles of blood detection like peroxidase reaction with hemoglobin and biochemical reactions behind the major serological tests for blood stains. The idea is to understand the effects that dilution and substrates have on the observed sensitivity of the tests. The limitations of these tests will also be reviewed and discussed. The intention of this research review is to present a careful and balanced evaluation of detection methods for bloodstains, and making appropriate suggestions for applying the research in case work, as dependent upon type of blood used in the research.
The evaluation of any forensic technique is dependent upon the detection, observation, measuremen... more The evaluation of any forensic technique is dependent upon the detection, observation, measurement and validation of data through experimentation. The credibility of forensic science has suffered in the past due to bad science. It continues to suffer until this day as there hasn't been much change in methodology, application, practice and research. The work carried out by the criminal justice community during investigations in crime scenes has unfortunately been on the basis of a hit-and-trial method. Forensic sciences and especially bloodstain analysis need to move more towards a scientific foundation and standardization to have a better foothold in the scientific community. This article will review the components of blood, basic principles of blood detection like peroxidase reaction with hemoglobin and biochemical reactions behind the major serological tests for blood stains. The idea is to understand the effects that dilution and substrates have on the observed sensitivity of the tests. The limitations of these tests will also be reviewed and discussed. The intention of this research review is to present a careful and balanced evaluation of detection methods for bloodstains, and making appropriate suggestions for applying the research in case work, as dependent upon type of blood used in the research.
The evaluation of any forensic technique is dependent upon the detection, observation, measuremen... more The evaluation of any forensic technique is dependent upon the detection, observation, measurement and validation of data through experimentation. The credibility of forensic science has suffered in the past due to bad science. It continues to suffer until this day as there hasn't been much change in methodology, application, practice and research. The work carried out by the criminal justice community during investigations in crime scenes has unfortunately been on the basis of a hit-and-trial method. Forensic sciences and especially bloodstain analysis need to move more towards a scientific foundation and standardization to have a better foothold in the scientific community. This article will review the components of blood, basic principles of blood detection like peroxidase reaction with hemoglobin and biochemical reactions behind the major serological tests for blood stains. The idea is to understand the effects that dilution and substrates have on the observed sensitivity of the tests. The limitations of these tests will also be reviewed and discussed. The intention of this research review is to present a careful and balanced evaluation of detection methods for bloodstains, and making appropriate suggestions for applying the research in case work, as dependent upon type of blood used in the research.
The evaluation of any forensic technique is dependent upon the detection, observation, measuremen... more The evaluation of any forensic technique is dependent upon the detection, observation, measurement and validation of data through experimentation. The credibility of forensic science has suffered in the past due to bad science. It continues to suffer until this day as there hasn't been much change in methodology, application, practice and research. The work carried out by the criminal justice community during investigations in crime scenes has unfortunately been on the basis of a hit-and-trial method. Forensic sciences and especially bloodstain analysis need to move more towards a scientific foundation and standardization to have a better foothold in the scientific community. This article will review the components of blood, basic principles of blood detection like peroxidase reaction with hemoglobin and biochemical reactions behind the major serological tests for blood stains. The idea is to understand the effects that dilution and substrates have on the observed sensitivity of the tests. The limitations of these tests will also be reviewed and discussed. The intention of this research review is to present a careful and balanced evaluation of detection methods for bloodstains, and making appropriate suggestions for applying the research in case work, as dependent upon type of blood used in the research.
Uploads
Papers by Ayesha Sultana