Trace evidence collected at a crime scene can be pieced together to build a
picture of events leading to the offence and any potential suspects.
SECRETS OF THE SCENE
FINGERPRINTS Fluorescent powder and UV light reveal a
fingerprint on the murder weapon’s blade. A match with a
print on the national crime database could provide a suspect.
5
BLOOD DROPS These little dots are important because they
appear to have fallen from a height and could reveal actions
by the offender rather than the victim.
6
FOOTPRINTS Blood-stained tracks can give police information
on the size and brand of the shoe worn by a potential suspect
and their movements at the scene.
3
POOL OF BLOOD This blood pattern, which has been caused
by heavy bleeding, most likely came from the victim – it can
give clues about how long the body has been here.
4
CRIME SCENE INVESTIGATION KIT These portable cases
contain many tools for finding and sampling evidence, such as
LED torches that operate at various wavelengths.
1
MARKING UP THE EVIDENCE Before samples are collected,
forensic officers use numbered tags to mark up evidence that
needs to be sampled – an often time-consuming task.
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