The Role of DNA at the Crime Scene
DNA evidence is the strongest and most reliable identification evidence that exists in crime investigation. It can come in the form of blood, hair, skill cells, semen and saliva.
In this video, Dr. Jobin discusses how the technology has advanced, how much DNA is needed for a positive identification, and whether or not DNA evidence can be used for cold cases.
With proper storage, DNA can last forever. This becomes increasingly useful in solving decade old cold cases.
The moral of the story? If you leave your DNA at a crime scene, you will be found out and connected to the crime.
For more information on how to avoid leaving DNA evidence at a crime scene, read the article 7 Tips to Avoid Leaving DNA Evidence
From the Crime Scene to the Crime Lab
