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Physical evidence whose origin is known, such as blood or hair from a suspect, that can be compared to crime-scene evidence. |
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A swab of the inner portion of the cheek; cheek cells are usually collected to determine the DNA profile of an individual. |
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Uncontaminated surface material close to an area where physical evidence has been deposited. This sample is to be used to ensure that the surface on which a sample has been deposited does not interfere with laboratory tests. |
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A draft representation of all essential information and measurements at a crime scene. This sketch is drawn at the crime scene. |
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A precise rendering of the crime scene, usually drawn to scale. |
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A list of all people who came into possession of an item of evidence. |
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Any object that can establish that a crime has been committed or can link a crime and its victim or its perpetrator. |
