In today's trials there are very advanced and powerful tools in forensic science techniques that help prove the innocent and convict the guilty. Using these techniques has helped save many innocent people get out of jail and save others from going to jail. This science can use blood and other bodily fluids, teeth, bones, hair, fingerprints, handwriting, clothing fibers as clues in many different cases. .
DNA (Deoxyribonucleic acid) is considered to be the biggest crime solving breakthrough of the century. The way it works is by examining the genetic code in the DNA to find out who the body fluid belongs to prove they were at the scene of the crime. Basically it's a sort of genetic fingerprinting and no two individuals with the exception to identical twins will have the same genetic finger print. This technique was invented in the early "80s by a geneticist named Alec Jeffreys. The first time it was used was in a murder case over in Britain where the geneticist was from. .
Another technique used is fingerprinting. This has been used for quite a while by investigators. If finger prints are at the scene of the crime, it can be a very useful tool to identify suspects. Especially since recent technology further advanced this technique. Ever since "72, computers have been able to compare finger prints with all of which are on file. This saves incredible amounts of time. Before this they used to compare fingerprints with paper and ink which could take up to months but now this procedure only takes a few hours at most. The bad side about relying on this is that it can be prevented easily by wearing gloves while committing the crime so your fingerprints won't get on anything.
Scientists can now use old bones recently discovered to identify who it was. By using the skull of a human you can determine what the person looked like. The way the bones are structured you can tell the race, gender, and age of the individual.