Presumptive testing can be a very useful tool in the early stages of an investigation. However, it can cause issues in some circumstances and may lead to some uncertainty over the origin of a sample. Evaluate the use of presumptive testing at crime scenes and consider both advantages and disadvantages of the techniques.
Presumptive Testing of Body Fluids Scenario Having an indication of what the source of a particular body fluid is at a scene can provide useful information to an investigation. It can not only assist with the subsequent recovery strategy but also build a picture of the events that lead to that fluid being present. There … Read more