Diana Herweck - On the Scene: A Csis Life

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Diana Herweck

O

N

T

H

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S

C

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E

O

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C

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s s

Life

A

Teacher Created Materials

5301 Oceanus Drive

Huntington Beach, CA 92649-1030

http://www.tcmpub.com

ISBN 978-1-4333-4825-9

2013 Teacher Created Materials, Inc.

Consultants

Timothy Rasinski, Ph.D.

Kent State University

Lori Oczkus

Literacy Consultant

Dani Mata

Forensic Scientist

Based on writing from

TIME For Kids. TIME For Kids and the TIME

For Kids logo are registered trademarks of

TIME Inc. Used under license.

Publishing Credits

Dona Herweck Rice , Editor-in-Chief

Lee Aucoin , Creative Director

Jamey Acosta , Senior Editor

Heidi Fiedler , Editor

Lexa Hoang , Designer

Stephanie Reid , Photo Editor

Rane Anderson , Contributing Author

Rachelle Cracchiolo , M.S.Ed., Publisher

Image Credits: p.5 (bottom left), 35 Alamy;

cover & pp.1, 4, 6 (bottom),17, 24 (bottom),

p.30 Getty Images; pp.14, 18, 22, 24, 24

(top), p.34 iStockphoto; p.41 LOC_A.

Weidenbach; p.10 Photo Reseachers

Inc.; pp.21, 25, 2829, 3233 Timothy J.

Bradley; p.37 Zaid Hamid [Public Domain]

via. Wikimedia; p.31 AFP/Newscom; p.26

EPA/Newscom; p.20 (bottom) ZUMA

Press/Newscom; All other images from

Shutterstock.

Synched Read-Along Version by:

Triangle Interactive LLC

PO Box 573

Prior Lake, MN 55372

ISBN-13: 978-1-68444-899-9 (e-book)

Table of

Contents

On the Scene ...................

In the Lab ....................

Case Closed ...................

Glossary ......................

Index ........................

Bibliography .................. 46

More to Explore ...............

About the Author ..............

On the Scene

T

he

house is covered in blood. A body is

floating out back in the swimming pool.

Was it an accident or foul play ? When did this

happen? And who is responsible? Where should

investigators start?

Those are the questions crime scene

investigators (CSIs) must answer. CSIs study

crime scenes. They collect evidence to find out

what happened. Its just like on a TV show, but

this is real. And the science they use to do their

jobs is a matter of life and death.

An investigator uses a magnifying

glass to compare bullets.

Imagine you are a CSI.

What skills would you need to succeed?

How would you solve a crime?

Why do you think this job is so important?

Traces of Evidence

When someone commits a crime however

big or small there are traces of evidence. Even

a simple crime, such as stealing a cookie, leaves

clues behind. Most criminals try to avoid leaving

signs of their work. But evidence can be so small

its nearly invisible. The average person wont

see it, but a CSI knows exactly where to look.

CSIs look for many types of evidence. Basic

marks like fingerprints, mud, lipstick, and ink can

give clues about the crime. Fibers from plants,

hair, clothes, and furniture can be traced to the

scene of the crime, too. CSIs even search for

patterns in mud. One footprint can lead them to

the perpetrator (PURpitreyter).

CIVILIAN CRIME

FIGHTERS

Most CSIs are civilians . This

means they might not carry guns.

They dont arrest people or give

tickets. They help police officers

and detectives solve crimes. But

they are not police officers.

Photographs provide a

permanent record of

a crime scene and

the evidence.

Extreme

Some scientists

specialize in finding

DNA matches.

Latent print examiners

(LEYT-nt PRINT ig-ZAM-in-ers)

specialize in fingerprints.

Odontologists (oh-don-TOL-uh-justs)

can identify a body by its teeth. This

can be helpful if there is damage to

the other parts of the body.

There are many ways to solve a

crime. Thats why CSI teams are

made up of many specialists.

Depending on the crime,

different specialists will be

called in to help.

Experts

Pathologists (puh-THOL-uh-justs)

study the human body. They can

determine the cause of death,

the time of death, and more.

Some CSIs are ballistics

(buh-LIS-tiks) experts. They

study guns and bullets.

Forensic (fuh-REN-sik)

photographers take

pictures of evidence.

Forensic artists listen to witnesses and

review evidence. They use clues to draw a

picture of the people who commit crimes

so police officers can look for them.

Entomologists (en-tuh-MOL-uh-justs)

study insects and their behavior.

Insects help determine the area

where something took place as well

as when it happened.

Looking for Tracks

The investigation starts outside. CSIs begin by

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