This is America. Гришенкова Е.Г. - 115 стр.

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115
What are some of the clues investigators might look for? Fingerprints are one
important clue in a crime scene. No two people have the same fingerprints, so they
are useful in identifying suspects. Fingerprints are sometimes very easy to see. For
example, a murderer might have blood or dirt on his or her hands which leaves prints
on the wall. Investigators sometimes use chemicals and special lighting to uncover
fingerprints that cannot be seen with the eye alone.
The criminal might also leave his or her shoe prints. Experts can discover the
manufacturer of the shoe. They can also tell about a person’s height and the way he
or she walks. A suspect might also leave behind hairs or some kind of body fluid such
as blood. DNA testing can then reveal the suspect’s identity.
If the crime involves a murder, the body itself holds many clues. Medical
examiners can give important information about how the victim died. They study
wounds and chemical tests to find out if the victim died accidentally or not. They can
tell if a wound was created by the victim or by another person. And, they can
discover the time of death to see if it matches information given by suspects and
witnesses.
Visitors to the Museum of Crime and Punishment can learn more about blood
and its importance in an investigation. They can attend a Crime Scene Investigation
workshop. During these events, a trained expert talks to museum visitors and leads an
experiment. We attended one that was taught by a graduate student from George
Washington University’s Forensic Science Department.
In the workshop the expert discussed how investigators can learn a great deal
from the shape of the blood drops found at a crime scene. A circular blood drop could
mean the blood fell directly downward. But blood drops with long tails can tell a
great deal about the direction, speed and angle of the blood’s starting point. This
information can show what kind of weapon was used in a murder. And it can show
from what position the murderer killed a victim.
This workshop shows that it takes a deep understanding of science to lead a
crime scene investigation. And, the job requires careful attention to detail, because
even the smallest observation can lead to solving a crime.
3 COMPREHENSION CHECK
Decide whether these statements are TRUE or FALSE
1. The FBI’s “Top Ten List” has proved its efficiency.
2. Due to the director of the FBI J. Edgar Hoover a program “Ten Most Wanted
Fugitives” appeared on TV.
3. Wide publicity about the criminal proved to help lead to an arrest.

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