Analysis of evidence

When evidence has been collected from a crime scene, following all the correct procedures, entered in to the chain of custody and transported to the forensic laboratories, analyse by specialists will take place. Specialists will analyse an item of evidence specific to their chosen field and will undergo certain procedures in order to gain results from the piece of evidence. Through the analysis of evidence will be able to determine whether a potential suspect is in fact the offender to the crime. Also analysis may help to reduce the number of suspects police officers may have, for example if a hair sample is analysed this will be able to determine how long the suspect hair may be and colour, therefore this may reduce the number of suspects as if the hair sample found was a brown head hair, blonde haired suspects could be removed from the investigation. Once the analysis of the piece of evidence is complete the forensic analysis's or scientist's will write a report surrounding the piece of evidence stating all the information they have gathered about the item. Other evidence such a witness statements, photographs and surveillance would be analysed by police officers and investigators who are investigating the case. This will help to further the investigation surrounding how the incident occurred and why.



The O.J. Simpson Case

Within the O.J. Simpson case, many different items of evidence were analysed however a lot of the evidence that was taken from the crime scene was biological evidence, or physical evidence with biological evidence upon it.
Blood drops were found at the crime scene on the back gate, this blood was analysed and matched O.J. Simpsons DNA, and as O.J. Simpson had a cut on his finger, this concluded that Simpson was in fact at the crime scene as his finger dripped with blood after wounding himself with the knife he used to kill ex wife Nicole Brown and Ronald Goldman. However as the cut was only very small, this cut would not have been able to bleed as much as the drops of blood at the crime scene suggest. Also due to the amount of evidence that was poorly collected from the crime scene, the defence team raised that due to the sloppy work from officers and SOCO's at the crime scene, this evidence was said to be unreliable. 
Another piece of evidence that was found at the scene was bloody shoe prints. These shoe prints were a size 12 Bruno Magli shoe, as O.J. Simpson was a size 12 too and this particular make of shoe was extremely rare the prosecution team stated that this piece of evidence proven that Simpson was at the crime scene proving evidence that O.J. Simpson had bought the shoes while shopping in Bloomingale's in New York. However the defence team argued that many people had bought those particular shoes and that the prosecution team had no valid evidence to prove that Simpson had bought those particular shoes. Also there was other shoe prints at the crime scene which did not match the Bruno Magli shoe.
Another piece of evidence which was seized at the crime scene and analysed was hairs and fibres. Dark blue cotton fibres were collected off the body of Ronald Goldman which were similar to the carpet fibres within Simpsons Ford Bronco. Hair fibres which were found within a dark knitted cap where also similar to Simpsons however after analysing Simpsons hair, his hair sample contained some dandruff where as the hair fibre taken from the crime scene did not. Therefore the hair sample did not match to Simpson. 
The most known piece of evidence that was collected from the crime scene was the glove. The glove that was found at the crime scene shown to have hair fibres and blood upon it. After forensic analysis was taken place upon the glove, the blood matched Simpsons, Nicole Browns and Ronald Goldmans. The blonde hair fibre was also very similar to Nicole Browns hair. 
One pair of dark coloured socks were also found at the bottom of Simpsons bed, these were taken for analysis and the DNA tests result test that there was blood upon these socks which had the same genetic markers which matched Simpson and Nicole Brown. 
Blood was also found within Simpsons Ford Bronco, a small spot of blood was located on the drivers side on the outside handle, more blood was found smeared inside the Bronco upon the door, steering wheel and carpet. The analysis results of this blood shown the genetic markers matches Simpsons, Nicole Browns and Goldman's.