Crime Scene Investigators Often Follow A Two-phase Process When Searching For Fingerprints.
First They Look For Patent And
Plastic Prints Since They Are Visible. Often Times, A Flashlight Is Used During This Phase.
The Second Phase Involves A Blind
Search For Latent Prints.
There are several challenges to select and collect samples for antemortem and postmortem analysis. The relevance of any finding is primarily determined by the type and quality of the sample submitted to the laboratory that’s why numerous pre-analytical aspects should be considered during collection in order to have samples with sufficient quality and quantity.
How to collect and preserve biological samples? and, in what amount biological samples are needed for examination? All information is given in this post.
At a crime-scene, tiny fragments of physical evidence such as hairs, fibers from clothes or carpet can help tell the story of what happened. These are referred as trace evidence.
There are some examples of Trace evidence, such as; Fibers, hair, soil, wood, gunshot residue and pollen. These are a few examples of trace evidence that may be transferred between people or objects at a time of crime….Read More…..