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.
Knowledge of pollen dispersal (pollen rain) and productivity often plays a major role in solving such problems.
A Y-STR is short tandem repeats on the Y-chromosome. Y-STRs are often used in forensics, paternity, and genealogical DNA testing….
👂The ear has been used as a tool for human identification since the late 19th century when Alphonse Bertillon utilized the ear as one of the eleven anthropometric measurements for his manual system of identifying individuals.
Bare footprint or Impression and shoeprint or impression is generally known as Footprint.
They may be caused by bare foot, or may be left by footwear. These prints known as footwear prints….read more….
Biological Evidence is a type of Physical Evidence which contains DNA. Biological evidence are very useful to connect offender to a crime scene. Sometimes these evidence can be hard to find by naked eyes. DNA can be found on many things or objects.
Tools Used To Collect Samples::
1. Blood Collection Tube
2. Pubic Hair Combings Envelope, Towel & Plastic Comb
3. Saliva Sample Envelope, Sterile Swabs & Box
4. Head Hair Combings Envelope, Towel & Plastic Comb…..
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…..
