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Forensic serology. is the detection, identification, classification, and study of various bodily fluids such as blood, semen, saliva, and urine, and their relationship to a crime scene. A forensic serologist may also be involved in DNA analysis and bloodstain pattern analysis. [ 1][ 2] Serology testing begins with presumptive tests which gives ...
Forensic science, also known as criminalistics, [ 1] is the application of science principles and methods to support legal decision-making in matters of criminal and civil law . During criminal investigation in particular, it is governed by the legal standards of admissible evidence and criminal procedure. It is a broad field utilizing numerous ...
The Kastle–Meyer test is a form of catalytic blood test, one of the two main classes of forensic tests commonly employed by crime labs in the chemical identification of blood. The other class of tests used for this purpose are microcrystal tests, such as the Teichmann crystal test and the Takayama crystal test. [ 1] The test was named after ...
Forensic science. Bloodstain pattern analysis ( BPA) is a forensic discipline focused on analyzing bloodstains left at known, or suspected crime scenes through visual pattern recognition and physics-based assessments. This is done with the purpose of drawing inferences about the nature, timing and other details of the crime. [ 1]
Forensic DNA analysis can be a useful tool in aiding forensic identification because DNA is found in almost all cells of our bodies except mature red blood cells. Deoxyribonucleic acid is located in two different places of the cell, the nucleus; which is inherited from both parents, and the mitochondria; inherited maternally.
Further chemical tests are needed to prove that the substance is blood. Confirmatory tests are the tests required to confirm the analysis. Confirmatory tests cost more than simpler presumptive tests so presumptive tests are often done to see if confirmatory tests are necessary. Similarly, in medicine, a presumptive diagnosis identifies the ...
Blood residue. Blood residue are the wet and dry remnants of blood, as well the discoloration of surfaces on which blood has been shed. In forensic science, blood residue can help investigators identify weapons, reconstruct a criminal action, and link suspects to the crime. [ 1] Analysis of blood residue is also an important technique in ...
John Schneeberger. John Schneeberger (born 1961) is a North Rhodesian -born criminal who drugged and sexually assaulted one of his female patients and also his stepdaughter while working as a physician in Canada. For years, he evaded arrest by implanting a fake blood sample inside a plastic tube in his arm, which confounded DNA test results.