Transcript 2012-2013 Forensics Do Nows

FORENSICS
Quarter 1 Do Nows
Do Now 2
***PLACE your TOP 10 Moments and SIGNED Papers (syllabus,
lab safety, parent letter) in the file folder UNDER the first
letter of your LAST NAME
1. Explain the consequences, in order, if a students chooses to
break a rule.
2. Define plagiarism and give three different examples.
3. List and briefly describe the class rules in your OWN words.
4. Describe what you would do in the following scenarios
(explain why):
a)
b)
c)
You are working in the lab and you notice the teacher has her hand in the
air.
You were absent last class and you need to know what the assignments
were.
The teacher is giving notes and the bell rings.
5. Describe the hall pass policy.
6. Study for class procedures, expectations and safety quiz.
Exit Pass 2 Forensics
1. List and describe the positive and negative
aspects the “CSI EFFECT” has had on society.
Forensics Do Now 3
Have out materials (stapler, colored pencils, composition book, do now notebook and notes
notebook) for supply check
Any signed documents you forgot last class have out as well!
1. Define forensics.
2. Explain the difference between the biological and the
physical science units of a crime lab.
3. Define evidence and differentiate between the
different types.
4. Name the unit used to analyze the evidence and
briefly explain why.
a)
b)
c)
d)
Strange white powder
A bullet casing
Strange rocks and soil found on the carpet
Blood-like substance on a knife
Forensics 1 Exit Pass 3
1. List the five main steps of the scientific
method.
2. Write out a proper hypothesis for the
following problem statements:
a) How does height effect blood spatter patterns?
b) Does distance effect the pattern of GSR?
Forensic Science Do Now #4
Complete Do Now and then prepare for presentations
1.
A.
B.
C.
D.
E.
F.
G.
Name the branch/division of the crime lab that would be involved in the following cases
AND EXPLAIN why.
A strange white powder is found at the scene of a violent stabbing.
A body was discovered in an abandoned car. Small branches and leaves were discovered
on the victim.
There has been an explosion and the remains of the victims are unidentifiable. The
bones are completely charred…teeth remain.
A dark red substance appears on a sofa in the apartment of a missing woman. It looks
like there was a struggle.
Shattered glass was found around the body of a homicide.
Bullet casings were found at the site of a convenience store break-in.
A man appears to have a died of a heart attack but investigators notice defensive
wounds on his hands and wrist.
1.
2.
Forensic Science 1 Do Now 5
Define the Locard Principle.
Explain how destroying evidence may not be beneficial to a criminal.
List the branch that would investigate the following scenarios and briefly EXPLAIN why:
3.
4.
5.
6.
Gunshots were heard on the Everglades National Reserve. Park rangers have
noticed boot tracks through a restricted area and one of the most active
alligators has not been seen in 3 days.
The Florida house representative received a letter at his office that was not
signed but upon opening, a white crystal like powder fell out of the stamped
envelope.
There has been a series of break-ins in local jewelry stores in Bal Harbor. Law
enforcement officials have noticed similar crime scene patterns and have linked
the break-ins to a new Russian mafia.
The has been suspicious activity across the Georgia-Florida state border.
Officials suspect locals to be running a pill mill in northern Florida and using
college students to transport the pills across state lines.
Study quietly for your quiz.
Forensic Exit pass 4/5
A lovely cashmere sweater was found torn to shreds (What a Crime!!) on the sidewalk in the
international quarter.
The sweater police talked to six witnesses, including the shredder. The six were very open
about what had happened. The only trouble was that none of them spoke any language the
police could understand. Nevertheless, the police were able to piece together the following
information: The witnesses were three men and three women: Fred, John and William; Gloria,
Gilda, and Barbara
The men were married to the women, though not necessarily in the order listed.
William's wife was the cashmere murderer.
Fred speaks and understands only Basque.
John is bald.
The couple who live next door to Gilda and her husband have the same color hair she does, and
speak both Spanish and Basque.
William's wife recently gave Barbara a home perm.
Gilda's husband speaks only French.
Who destroyed the lovely sweater? Explain your answer!
 Solution to the Wife Puzzle
 If you can identify William's wife, you'll know the
shredder. William's wife isn't Barbara, because the former
gave the latter a permanent. William's wife must be
either Gilda or Gloria.
 Fred's wife isn't Gilda, because he speaks only Basque and
her husband speaks only French. So Fred's wife is either
Gloria or Barbara.
 If John is bald, he doesn't live next door to Gilda and he
doesn't speak Spanish and Basque.
 Therefore, John must speak French and be married to
Gilda. Only Gloria can be William's wife and the horrible
cashmere shredder.
Forensics Do Now #6
1. Differentiate between testimonial evidence
and physical evidence.
2. Explain the effects a weapon during a crime
can have on eye witnesses.
3. Describe the Innocence Project and explain
its significance in forensic science and law.
4. List 5 factors that can influence an eye
witness account and explain specifically how
it would affect the eye witness account.
Forensics Do Now 7
1. Differentiate between circumstantial evidence and direct/real
evidence.
2. Explain how circumstantial evidence is useful in crime scene
investigation. But also explain why circumstantial evidence can
not be used as the sole form of evidence in court.
3. Give three examples of transient evidence that can be found
at a crime scene.
4. Give three examples of conditional evidence that can be found
at a crime scene.
5. Differentiate between class and individual evidence. Give an
example of each and explain why it is either class or
individual.
Forensics Exit Pass
1.
6.
2.
7.
3.
8.
4.
9.
5.
10.
Forensics 1 Do Now 8
1.
2.
3.
Define probative value and explain how you can increase the probative value of
class evidence.
Differentiate between transient evidence and conditional evidence. Explain
how they can be valuable to a crime scene investigator.
Someone vandalized the auditorium this morning. School cameras show a
person wearing a white shirt, khaki jeans, white sneakers, and dark
brown/black hair in the vicinity around 6 am. Eye witnesses also state that they
remembered that they saw a person fitting a similar description carrying a
black back pack and wearing glasses around 6:45 am walking away from that
area. How many students in the school are likely to fit all these characteristics?
Show your work for the probative value of each piece of evidence separately
and then for all of it together.
Forensics 1 Do Now 9
1. Briefly summarized the “CSI Effect”.
2. For the following, name the type of evidence, unit
that would investigate, and whether it is class or
individual (and why).
a)
b)
c)
d)
e)
f)
g)
Torn piece of paper
Latex glove found at crime scene
Size 10 shoe print
Blonde hair
Leaf from a plant
Denim fiber
Broken piece of glass
Forensic 1 Do Now#10
Copy down these questions ASAP, the picture needed
for #4 is on another slide….
1. Compare and contrast the two types of evidence.
2. Differentiate between physical and chemical
properties. Provide two examples of each.
3. Explain why the question above is relevant to forensic
scientists analyzing evidence. Be specific.
4. List all the pertinent evidence you would collect from
this scene, classify as individual or class, name the
type and the crime lab unit that would investigate.
1.
2.
3.
Crime Scene A
Crime Scene B
Crime Scene C
(see next slides)
Find these for EACH CS:
3 physical general
3 physical trace
3 biological
3 transient
3 conditional
Mock Crime Scene: http://www.masss.gov
Forensics Do now 11
• Pick up handout and complete in do now notebook
16. The Man who Hanged Himself
• Not far from Madrid, there is a large wooden barn. The barn is completely empty except for a dead man
hanging from the middle of the central rafter and a puddle of water on the floor. The rope around his neck is
ten feet long and his feet are three feet off the ground. The nearest wall is 20 feet away from the man. It is
not possible to climb up the walls or along the rafters. The man hanged himself. How did he do it?
17. Death in a Field
• A man is lying dead in a field. When he was approching the field moments before, he knew he was going to
die. Next to him there is an unopened package. There is no other creature in the field. How did he die?
18. Anthony and Cleopatra
• Anthony and Cleopatra are lying dead on the floor of a villa in Egypt. Nearby is a broken bowl. There is no
mark on either of their bodies and they were not poisoned. How did they die?
19. The Coal, Carrot and Scarf
• Five pieces of coal, a carrot and a scarf are lying on the lawn. Nobody put them on the lawn but there is a
perfectly logical reason why they should be there. What is it?
20. Push that Car
• A man pushed his car. He stopped when he reached a hotel at which point he knew he was bankrupt. Why?
Forensics Do Now 12
1. Describe three things you think should be
done by the police officer who is the first to
arrive to a crime scene.
2. Briefly describe how crime scene
investigation is represented in the media is
(the actual crime scene investigation
portion). Explain what portions you think are
unrealistic and which ones are realistic.
Forensics Do Now 13
1. List the three major reasons a crime is
committed.
2. Describe the role of the law enforcement
officer during a crime scene investigation.
3. List and briefly describe the members of the
crime scene investigation team.
Forensic Science Do Now 13/14
1. List and describe the steps of processing a
crime scene.
2. Explain the 5 responsibilities of the first
responding officer.
3. Briefly describe the crime scene your group
has created. Make sure you have descriptive
eye witness accounts in your police report so
the other groups can create a composite.
Forensics Do Now 15
1. Describe the four main responsibilities of the
crime scene investigator.
2. Explain why the following statement is inaccurate:
•
There is always only one crime scene.
3. Explain why it is important to maintain the chain
of custody.
Forensic Science Do Now 16
1. List and describe the most important guidelines
when photographing a crime scene.
2. Create a hypothetical crime scene sketch. Be
sure to include ALL the key points listed in the
notes.
3. Explain why it is important not to delete an
images from an digital upload of a crime scene.
4. Study for Quiz
Do Now 17 period 3
1. Provide an example of breaking the chain of custody.
2. Draw an example of an appropriate evidence label.
Include ALL parts.
3. Explain the significance of the fourth amendment in
crime scene investigation.
4. Explain the significance of the “walk-through”.
Describe some consequences if the walk through is
not done correctly.
5. Differentiate between manner, mechanism and cause
of death. Provide examples of three scenarios and
list cause (C), mechanism (ME) and manner of death
(MA).
Do Now 17 period 2
1. Provide an example of breaking the chain of
custody.
2. Explain the significance of the “walkthrough”.
a) Describe some consequences if the walk through
is not done correctly.
3. List and describe the various types of
documentation a crime scene investigator
can utilize.
Exit Pass Period 2
1. Explain the significance of the fourth
amendment in crime scene investigation.
2. Differentiate between manner, mechanism
and cause of death. Provide examples of
three scenarios and list cause (C), mechanism
(ME) and manner of death (MA).
Forensic Science Do Now #18
1.
2.
Define modus operandi.
Explain the various methods of documentation in crime
scene investigation and how each is utilized.
Describe and diagram how you would package trace
evidence (hair or fiber) collected from a crime scene. Be
DETAILED!!!
3.
4.
Determine cause of death (C), mechanism of death (ME), and manner
(MA) of death for each of the following scenarios AND EXPLAIN!!!
a)
Man found shot three times in his thoracic cavity outside the bank. Wallet is
missing.
b)
Child found floating face down in a pool in her parents backyard. No
visible injuries.
Elderly woman found in bed. No sign of struggle. Heart medication
found in her nightstand.
Young man found hanging from the rafters behind his house. A note
written in his handwriting is found inside the house.
c)
d)
Forensics Quarter 2 Do Nows
• Take out “The Bone Collector” notes and
prepare to complete film assignment
Forensics Do Now #1
1. List and describe the duties of the first
arriving officer.
2. Explain how Officer Donaghy help protect
the first crime scene.
3. In a paragraph, explain how having a
collection of controls (reference samples)
has helped Lincoln Rhyme and why it is
beneficial for a forensic scientist and/or
crime scene investigator to have control
samples.
4. List 3 things you know or have heard about
ICE MUMMIES.
Forensics Do Now #2
1. Compare and contrast a skeleton, an ice mummy and
an Egyptian mummy.
2. Explain how soft tissue eventually disappears on a
skeleton and how this relates to ice mummies.
3. Define artifact and provide three examples.
4. List and briefly describe information that can be
gained by studying ice mummies.
5. Describe forensic techniques that can be utilized
when studying ice mummies.
Forensics Do Now 3
1. Explain why finger prints are considered
individual evidence.
2. Explain why the following statement is false:
– Criminals can successfully remove their finger prints
by burning them off.
3. Describe the composition of a fingerprint.
4. List and briefly describe the three types of finger
prints.
5. Study for Bone Collector Quiz
6. Prepare for mummy presentations
Forensics do Now #4
1. Compare and contrast the Ice Man and the Ice Maiden.
Include 3 major difference for each.
2. Define archeology and explain how it is related to ice
mummies.
3. Explain why an autopsy cannot be performed on an ice
mummy.
4. List and describe 3 artifacts found with the Ice Man and
explain what they told us about his life.
5. List and describe 3 artifacts found with the Ice Maiden and
explain what they told us about her life.
6. Review for Ice Mummy Quiz
Forensics Do Now # 5
• Pick up reading handout and questions
(yellow and white worksheets)
• Read passage on handout
• ON A SEPARATE SHEET OF NOTEBOBOOK
PAPER
– Copy questions
– Answer each question
– Turn in up folder when complete
– Place handouts back up front
Forensics Do Now #6
1. Explain how IAFIS has impacted the field of
forensic science.
2. Differentiate between a tented arch and a plain
arch finger print.
3. Differentiate between a radial loop and an ulnar
loop. Include a diagram.
4. Compare and contrast a central pocket whorl
and a plain whorl. Explain how to differentiate
between the two.
5. Explain the significance in identifying ridge
characteristics or minutiae.
Forensics 1 Do Now 7
1. Compare and contrast Sir Edward Richard Henry,
William Herschel and Henry Faulds.
2. Explain the modern day contributions Juan
Vucetich made to the field of forensics.
3. Describe how Johannes Purkinje and Nehemiah
Grew contributed to the field of forensics
without actually participating in crime scene
investigation.
4. Describe 2 major contributions Alphonse
Bertillon made to the field of forensic science.
5. Study for quiz (finger print history)
Forensics Do Now 8
• Pick up hand out and complete in do now
notebooks.
Forensics Do Now 9
1. Differentiate between a latent print and a visible
print.
2. Explain why it is important to photograph latent
prints at the crime scene before attempting to
lift the print.
3. Explain why 8-12 ridge characteristics are
needed to match a suspects print to the crime
scene.
4. Explain how you would determine your primary
classification number. Include a diagram.
12/5 Forensics Do Now 10
1. List and describe the three different glands
that produce the secretions that produce
latent prints.
2. Identify and describe the various procedures
used for latent print development.
3. List and describe each step in the ACE-V
latent print analysis process.
4. Explain how you would set up a super glue
fuming chamber.
Forensic Do Now 11/12
1. List and describe the three major glands found
in you skin.
2. Differentiate between cyanoacrylate fuming and
ninhydrin development.
3. Explain what the acronym ACE stands for.
4. Explain why magnetic dusting powder is more
effective than regular dusting powder.
5. `Explain how your latent print development
techniques would vary depending on the surface
type.
Forensics Do Now 13
1. Differentiate between class and individual
evidence.
2. Define probative value and explain how you
would increase the probative value of evidence.
3. Explain the purpose of the Innocence Project.
4. Differentiate between manner, mechanism and
cause of death.
5. Study for classroom rules and procedures quiz.
Forensics Do Nows
Quarter 3
Quarter 3 Forensics Do Now 1
1. List and describe the three main parts of a
hair.
2. Explain whether a hair found at a crime
scene is considered class or individual
evidence and explain why.
3. Make sure you Ch. 5 Dictionary is complete
Forensics Do Now 2
1. List, describe and classify two types of
evidence collected in the movie GATTACA.
2. Explain the benefits of having a DNA
database.
3. Explain the drawbacks of a DNA database.
4. Describe how the Locard Principal was
presented in the movie. Be specific.
Forensic Do Now 3
1. List and describe 5 things you can determine from analyzing
hair.
2. Explain each stage of hair growth. Include a labeled
diagram.
3. Define “telomeres” and explain what they have to do with
hair growth.
4. A person was brought to the medical examiner and they
found traces of metal ion (poison) metabolites 1cm from the
root, 1.5 cm from the root, 2.5 cm from the root and 3 cm
from the root. Write a one paragraph conclusion explaining
these findings. Show all necessary work to support your
answer.
5. Explain how dying your hair and bleaching your hair are
different.
6. Explain why a person going through chemotherapy loses
their hair.
Forensic Do Now 4/5
1. List and describe the 3 major parts of the hair.
2. Explain why some hairs may be left in your brush
after you comb your hair. Use key vocabulary terms
in your explanation.
3. Explain why the following statement is false:
– Two neighboring hair follicles on your scalp must be in the
same stage of hair development.
4. Describe the composition of the cortex.
5. Describe the procedures for making a mold of a hair
sample to observe the cuticle.
6. Diagram and label the major type of scale patterns.
7. Explain the different things we can examine when
analyzing the cuticle of the hair.
Forensic Do Now 5
1. Describe the composition of the cortex.
2. Describe the procedures for making a mold of a
hair sample to observe the cuticle.
3. Diagram and label the major type of scale
patterns.
4. Explain the different things we can examine
when analyzing the cuticle of the hair.
Forensics Do Now 6
1. Diagram the amino acid cysteine, label the parts and
circle AND explain why the R-group is important.
2. Diagram and describe the different medullary patterns.
3. Define metabolites.
4. Define follicular tag and explain its significance in forensic
science.
5. Differentiate between mDNA and nDNA.
6. Calculate the medullary index for a hair that has a
7.
8.
diameter of 0.525mm and a medulla with a diameter of
0.375 mm. Convert to micrometers and show all work.
Explain what conclusion you would come to regarding the
hair from above.
Study for hair quiz.
Forensics Do Now 7
1. List and describe three things you could analyze in a
hair sample to determine if it is human or animal.
2. Explain how you would correct the following
problems when using a microscope:
a) You are in high power and the image is way too blurry.
b) You look through the ocular lens and it is too bright.
c) You are looking at few hairs layered on top of each other
and you want to view the one on the bottom of the pile.
3. Explain two important guidelines to follow when
using the microscope.
Forensics Do Now 8
• Pick up hand out
• Complete front and back
• Study for microscope quiz 
Forensic Do Now 9
• List and describe the specific procedures your
group took to prepare a cuticle mold (include
time you waited for various components).
• BE DETAILED!!!
• This should be in your lab notebook
• Prepare for cuticle molding practical
Forensics Do Now 10
• List and describe at least 3 (there are
definitely 4) key features you can look for to
distinguish animal hair from human hair
Forensics Do Now 11 (Brain Exercise!)
1. What starts with an E, ends with an E and usually contains
only one letter?
2. Which word, if pronounced right, is wrong, but if
pronounced wrong is right?
3. What belongs to you but other people use it more than you?
4. Can you find a five letter word, which, when typed in upper-‐case, reads the same upside down?
5. What happens only in the middle of each month, in all of the
seasons, except summer and happens only in the night,
never in the day?
6. In which game do winners move backwards and losers move
forwards?
7. Why are 1998 dollar coins worth more than 1997 dollar
coins?
8. What word is the same backwards and upside down?
Forensics Do Nows
Quarter 4
Forensic Science Quarter 4
Do Now #1
1. Differentiate between natural fibers and synthetic fibers.
Provide examples of each.
2. Explain 5 important things a forensic scientist can analyze
from/about a fiber and describe the information they can
gain from this analysis.
3. Differentiate between direct and secondary transfer.
4. Describe the probative value of a white cotton fiber
compared to an orange polyester fiber. Explain what would
make these fibers more useful in an investigation.
Get lab notebook and prepare for Hair Practical!
Forensics Do Now 2
1. List and describe the seven different types of fiber analyses
a forensic scientist an conduct.
2. Explain which forensic analysis you would use if you
collected of 100 samples of the same fiber evidence.
3. Explain which forensic analysis you would use if you
collected only 2 samples of a fiber evidence.
4. Diagram 3 major weave patterns and describe three
characteristics these weave patterns give their
fabrics/materials.
5. Explain what unique trace evidence was located on Lori
Peterson’s body during the autopsy and describe the
test/procedure Dr. Scarpetta utilized to visualize this
evidence.
6. Describe the conclusions Dr. Scarpetta has reached from the
preliminary examination of Lori Peterson.
Forensics Do Now 3
1. List and describe, in order, the forensic analysis
steps you would take if you discovered a red,
blood-like substance at a crime scene.
2. Explain whether blood type is class or individual
evidence. Explain why.
3. Differentiate between a secretor and a nonsecretor. Explain how a non-secretor impacts an
investigation.
4. Differentiate between the terms: antigen,
antibody, agglutination.
5. List and describe the major components of blood.
Forensics Do Now 4
1. Explain how what blood spatter pattern
analysis can be useful in a crime scene
investigation.
2. Diagram a blood drop and label all major
parts.
3. Explain how velocity impacts a blood spatter
pattern.
4. Describe how surface type impacts blood
spatter pattern.