In this report I will discuss the importance of collecting evidence at a crime scene. The evidence can make or break a case. There are specific duties assigned to each member of the CSI team who investigates a crime scene. Strict protocols are followed when securing the crime scene, collection evidence and interviewing witnesses. There are 5 main steps in processing a crime scene; interview, examine, photograph, sketch, and process. The gathering of evidence falls within the guidelines of processing the crime scene. The CSI personal has to have a keen eye to assess what is normal in the scene and what is evidence. Whenever there is a question as to what may be evidence, it is best to collect it and sort it out at the lab. Many people have a stake in what the CSI gather as evidence at a crime scene. Some evidence will clear persons involved, while others could be prosecuted by the same evidence. It is very important to take this training and job seriously. The balance of justice can be swayed so easily by the collection, processing and interpretation of evidence. Then there are cases that go to trial, get convictions with no evidence at all. Not because there was evidence and it not collected but because there was no evidence to prove a crime had been committed and the case was judged purely on made up stories with no facts to back them up. Later we find there in fact was no crime committed.