Forensic science is the study of finding, identifying and interpreting the clues and evidence that criminals leave behind at the crime scene. These clues are everything from tire marks in the dirt to an eyelash left on a carpet. Many people are involved in forensic science. Police, detectives, doctors and witnesses are required to investigate the crime. Many forms of scientific equipment are needed in the lab to examine the evidence. Without forensics many of our criminals would still be running free committing more crimes.
             Evidence is the key factor in solving a crime so as much evidence as possible should be collected. It must be collected with care as not to ruin what is left. Evidence can be anything from an eyelash to a pool of blood left at the crime scene. Detectives use many types of equipment to collect evidence. Before the detectives can rearrange the crime scene they must take photographs which will be developed at the lab later. Fingerprints are one of the most common types of evidence taken. To collect a fingerprint, detective's dust where they believe a fingerprint will be left, such as a doorhandle, they then place an adhesive sheet of plastic that will collect the fingerprint. These adhesive plastic sheets will also be used to collect fibres from a carpet and suspects clothing.
             The evidence that is collected at the crime scene is taken back to the lab to be tested. For that evidence to be tested the lab must have state of the art equipment. The most common used equipment is electron microscopes. These are used to magnify tiny evidence so that it's cells, fibres or whatever is in the specimen can be seen up close so it can be compared with other evidence. A more complex machine used in the lab is a spectrometer. A spectrometer is used to determine what chemicals are present in the unknown substance. Sometimes the simplest things are used as equipment, such as lemon juice because of its acid and
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