1. Forensic
Science
Amanda Bickford

2. Project Outline
 Detection of Fingerprints
 Superglue fuming
 Iodine fuming
 Ninhydrin
 Silver nitrate
 Detection of Blood
 Kastle-Meyer Color Test
 Luminol
 Fluorescein
 Teichmann Test
 Drug Identification
 Color Test
 Microcrystalline Test
 Thin Layer Chromatography
 Gas Chromatography/Mass Spectrometry

3. Detection of
Fingerprints
Catching Killers

4. Fingerprint Key Terms
 Porous surfaces – able to absorb fluids
 Ex. Paper, cardboard, and raw wood
 Nonporous surfaces – will not absorb fluids
 Ex. Plastic, glass, metal, and ceramic
 Latent prints – are prints that are invisible to
the naked eye
 Ultraviolet light (UV) – is the invisible energy
at the violet end of the color spectrum that
causes substances to emit visible light,
commonly called Fluorescence

5. Superglue
Fuming
 Cyanoacrylate
fuming
 First used in 1978 in
Japan
 Porous surfaces
 Appears yellow-
brown
Iodine
Fuming
Methyl
cyanoacrylate

6. Ninhydrin
 Poruous surfaces
 Appears purple
 Porous surfaces
 Appears red-brown
Silver Nitrate

7. Detection of
Blood

8. Detection of Blood Key Terms
 Hemoglobin – is a protein-based part of
the red blood cells that transfer oxygen
throughout the body
 Presumptive Test – first type of testing but
does not positively identify the substance
but it does narrow down the possibilities
 Confirmatory Test – last type of testing, it
can positively confirm the identity of a
substance

9. Kastle-Meyer
Color Test
Luminol
 Discovered in 1928
by German
Chemist H.O
Albrecht
 Appears bluish-
greenish light
 Phenolphthalein
and hydrogen
peroxide are used
 A false positive can
occur
PhenolphthaleinHydrogen Peroxide

10. Fluorescein Teichmann
Test
 Crystals are formed
 Look at sample
under a
microscope
 Alcohol based
 Water based
 UV light is used

11. Drug
Identification

12. Drug Identification Key Terms
 Toxicology – the examination of body
fluids and organs for drugs and poisons
 Chromatography – is the process of
separating compounds and ions by the
use of a variety of supporting material
 Mass Spectrum – is an intensity vs. m/z
(mass to change ratio) plot representing a
chemical analysis

13. Color Tests
 Marquis
 Scott Test
 Dillie Koppanyi
 VanUrk
 Duquenois-Levine
 A chemical reaction
occurs producing a
crystalline precipitate
 Each drug has its own
crystalline structure
Microcrystalline
Test
Thin-layer Chromatography/ Gas
Chromatography/ Mass Spectrometry
http://amandahone.edu.glogster.com
/forensic-science/

14. Work Cited
 "Deleting Our Carbon Footprints with UV Light! | Here Comes the Science Bit." Here Comes the Science Bit.
N.p., n.d. Web. 07 May 2013. <http://sciencebit.wordpress.com/2011/04/11/research-into-fossil-fuel-by-
products-as-important-as-green-energy-nowadays/>.
 Dollak, Amanda R. "Four Field Tests Used to Detect Blood at a Crime Scene." Yahoo! Contributor Network. N.p.,
2008. Web. 06 May 2013. <http://voices.yahoo.com/four-field-tests-used-detect-blood-crime-scene-
2037905.html>.
 "Enhancing Fingerprints With Ninydrin." Forensics4fiction. N.p., 13 June 2011. Web. 19 Apr. 2013.
<http://forensics4fiction.com/2011/06/13/enhancing-fingerprints-with-ninydrin/>.
 "FingerprintScience - Superglue Fuming & Ninhydrin Developer." FingerprintScience - Superglue Fuming &
Ninhydrin Developer. N.p., n.d. Web. 07 May 2013. <http://fingerprintscience.wikispaces.com/Superglue
Fuming & Ninhydrin Developer>.
 Gale. "Chromatography." World of Biology. Science In Context, 2006. Web. 6 May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&pr
odId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Reference&limiter=&
currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&action=e&ca
tId=&activityType=&scanId=&documentId=GALE%7CCV2431500129>.
 Gale. "Gas Chromatograph-mass Spectrometer." World of Forensic Science. Science In Context, 2006. Web. 6
May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&pr
odId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Reference&limiter=&
currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&action=e&ca
tId=&activityType=&scanId=&documentId=GALE%7CCV2645930225>.
 Gale. "Luminol." Chemical Compounds. Science In Context, 2006. Web. 6 May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&pr
odId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Reference&limiter=&
currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&action=e&ca
tId=&activityType=&scanId=&documentId=GALE%7CCX3441700106>.
 Gale. "Luminol." World of Forensic Science. Science In Context, 2006. Web. 6 May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&pr
odId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Reference&limiter=&
currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&action=e&ca
tId=&activityType=&scanId=&documentId=GALE%7CCV2645930299>.
 Gale. "Mass Spectrometry." World of Chemistry. Science In Context, 2006. Web. 6 May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&query=&pr
odId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Reference&limiter=&
currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_within_results=&action=e&ca
tId=&activityType=&scanId=&documentId=GALE%7CCV2432500436>.

15. Work Cited Continued
 Gale. "Superglue Fuming." World of Forensic Science. Science In Context, 2006. Web. 6 May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&q
uery=&prodId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Re
ference&limiter=&currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_
within_results=&action=e&catId=&activityType=&scanId=&documentId=GALE%7CCV2645930449>.
 Gale. "Thin Layer Chromatography." World of Forensic Science. Science In Context, 2006. Web. 6
May 2013.
<http://ic.galegroup.com/ic/scic/ReferenceDetailsPage/ReferenceDetailsWindow?failOverType=&q
uery=&prodId=SCIC&windowstate=normal&contentModules=&mode=view&displayGroupName=Re
ference&limiter=&currPage=&disableHighlighting=false&displayGroups=&sortBy=&source=&search_
within_results=&action=e&catId=&activityType=&scanId=&documentId=GALE%7CCV2645930462>.
 "How Forensic Lab Techniques Work." HowStuffWorks. N.p., n.d. Web. 29 Apr. 2013.
<http://science.howstuffworks.com/forensic-lab-technique2.htm>.
 "Left of Bang." Left of Bang. N.p., n.d. Web. 07 May 2013. <http://www.michaelyon-online.com/left-
of-bang/page-2.htm>.
 "Methyl Cyanoacrylate." Wikipedia. Wikimedia Foundation, 04 June 2013. Web. 19 Apr. 2013.
<http://en.wikipedia.org/wiki/Methyl_cyanoacrylate>.
 "A New Way to Detect Hidden graves." Sinelight Io. N.p., n.d. Web. 07 May 2013.
<http://itsachemicalworld.wordpress.com/2011/02/25/a-new-way-to-detect-hidden-graves/>.
 N.p.: n.p., n.d. Double-Replacement Reactions and Fingerprints. Web. 22 Apr. 2013. <http://ebook.its-
about-time.com/assets/book_files/ac_chem_2nd/pdf/se/c8/c8s5.pdf>.
 "OChemOnline." OChemOnline. N.p., n.d. Web. 07 May 2013.
<http://ochemonline.wordpress.com/2011/10/09/what-can-brown-do-for-you/>.
 Orthmann, Christine H., and Kären M. Hess. Criminal Investigation. 9th ed. New York City: Cengage
Learning, 2010. Print.
 Thibodeaux, Wanda. "Chemicals Used in Forensic Science." EHow. Demand Media, 14 Aug. 2010.
Web. 06 May 2013. <http://www.ehow.com/list_6865961_chemicals-used-forensic-science.html>.