DNA Source Example: Drinking Glass

In this picture, the drinking glass contains valuable DNA evidence. Saliva, sweat and skin cells from the victim and/or the suspect may be present.

DNA Source Example: Ashtray

In this example, DNA evidence left by the suspect and/or the victim could be found in the form of saliva, skin cells and sweat on the cigarette.

DNA Source Example: Laundry

In this example, DNA evidence from both the victim and suspect can be found in the form sweat, saliva, blood and/or semen.

DNA Source Example: Baseball Bat

At first glance, the victim's DNA evidence (hair, blood and bone fragments) would be found at the tip of the baseball bat. After further consideration, DNA evidence left behind by the suspect (sweat and skin cells) could be found on the handle of the bat.

DNA evidence can be found anywhere at a crime scene. It can be used to identify both the victim and/or the perpetrator. This evidence can also be used to identify witnesses, potential suspects and accomplices.

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