Upon entering a crime scene, you the investigating officer needs to assess the situation of the particular crime scene and decide which evidence to collect and which collection method or Evidence Collection Kit must be used.
This DE Bags For Evidence Collection Kit is only to be used for the collection of Biological samples from your crime scene.
Each DE Kit contains three Gusseted Brown Paper Bags, Large, Medium and Small, you will need to make use of more DE kits should you have more than three items that you wish to collect from the crime scene. The Gusseted Brown Paper Bags are used because they breath and will not sweat and destroy DNA evidence. However it is important to note that you must NOT put wet items into the Gusseted Brown Paper Bags as this will destroy the bag.
It is important to collect the evidence that will have the best chance of producing Biological DNA evidence.
DNA typing on touch evidence is based on the assumption that an individual who merely wears, handles, or touches an item will deposit their DNA, and that such contact can be used to develop a DNA profile of the responsible perpetrator.
Stains commonly examined for biological DNA would be blood, semen and saliva.
Humans shed tens of thousands of skin cells each day, and these cells are transferred to every surface our skin contacts. When a crime is committed, if the perpetrator deposits a sufficient number of skin cells on an item at the scene, and that item is collected as possible evidence, analysis may be able to link the perpetrator to the crime scene.
It is important to look for evidence that can been seen such as blood, semen, saliva but do not forget to look for evidence that cannot be seen such as Epithelial Cells which could have been left behind.