Why Are Biological Evidence Important

We have all seen news articles or watched the news when some crime was reported that some type of evidence was either lost, misplaced or due to some error was no longer usable to solve a crime. More than likely, the blame to this goes to the ones who are in charge of the facility that stores the evidence, such as the police department property and evidence rooms. Most police departments store the evidence in a room that is monitored, cataloged and secured. That evidence can be a weapon, a video, a voice recording, documents, money, drugs, blood, clothing, even organs to name a few.
Most importantly, out of all this evidence, some of these can degrade over time, for example biological evidence. When talking about biological evidence, it
Sometimes it is best to try and collect the entire object the biological evidence is on instead of just collecting the evidence itself to make sure the sample does not get degraded or cross contaminated with other evidence. Once any biological evidence has been identified, it is very important to properly collect it without damaging the sample. When finding hair at a crime scene, it is very important to document here it was found. Using a clean or sterile type envelope or bag to place the hairs in will help minimize any fibers or materials to be confused with the sample. You may also not verify any hair samples right away upon arrival to a scene; you may have to vacuum certain areas to find evidence left behind. If this is the case, at that point is when you may find hair evidence that may give you DNA or some type of fiber. Collecting biological evidence, you will be using swabs, tape, paper bags, tweezers, vacuum cleaners, or even forceps to assist you. In addition, your crime scene may not always be a building or house, it may be a vehicle. If this is the case, all biological evidence needs to be documented, photographed if possible, collected and that entire vehicle needs to be brought in as