Forensic Science presentaion

Two forensic scientists came to our school today. They told us about how the process is done when they get evidence from a crime scene. First they took a look at a scene, if it is a big crime they will put on suits so they don't get their DNA on the evidence.  If the scene is small (eg. break into a house) they will go in and look for evidence such as foot prints, blood, saliva, ect, then they send the evidence to Wellington. Scientist's process it and it goes through the DNA database.