Physical evidence sets the foundation to cases when attempting to identify the offender.
In addition, when the case goes to trial the evidence will be used to either prove or disprove a suspect's innocence or guilt. Clearly, the evidence is extremely important. Therefore, it is best to become familiar with the different types of evidence, as well as how to determine what is and is not evidence. Physical evidence can be seen, touched, smelled and so on. It must be material, relevant, and competent.