1. Suspect Number One
Barksdale
Motive: Bunk was trying to
shut down Barksdales club
because of illegal fake pepsi
sales
Suspect Number Two
Bubbles
Motive: Victim had spent
time falsely imprisoned
because of mistaken
identity
1

2. Suspect Number Three
Bell
Motive: Bunks
investigations were messing
up Bell’s college grades
Suspect Number Four
Colvin
Motive: Bunk had
information on Colvin that
Colvin did not want
everyone to know
2

3. Fibres left at the scene
microscopic analysis
Some Fibres were left behind at the
scene. Put on a pair of gloves and grab
yourself an evidence bag and a pair of
tweezers.
Examine the corpse, can you find the
fibres? Take one strand and examine it
under the microscope. Remember to
leave some for other investigators.
Whose clothes do these fibres
match? compare them to the samples
taken from the suspects....
Which are
smoother
under the
microscope?
Man made or
synthetic
fibres?
Flame Testing
different powders different
colours
A Powder was found at the scene of
the crime. When burned it gave off a
purple - lilac colour.
You have a set of samples in front of
you, use the wire to collect the powder
then hold it in the bunsen burner. What
colour does it glow?
Which is our mystery powder?
Do sparklers
burn the same
colour as a gas
fire?

4. Blood Chromatography
thicker than water?
The victim didn’t give up without a
fight and a sample of the suspects blood
was found at the scene.
We have taken blood from all of our
suspects. Run a chromatography to
compare the samples and see which one
matches closest.
Use the clinical sticks to diagnose any
conditions that the suspect might have.
Urine Analysis
it’s in the water...
The excitement of the kill may have
been too much for our murderer as we’ve
also managed to locate a urine sample.
Run some tests on this and compare
it to the samples we have taken from
each of the four suspect. Does this help
you in your case?
Note: Wear gloves!