Fingerprints Lesson PlanForensics ScienceMissL08-09

Chapter 4 DeslichFingerprints

Lesson Plan: use the fill in the blank lesson plan during our wrap up discussion of the unit as a closure to organize for our quiz and to study for our crime scene exam.

P50 define fingerprint and name 3 characteristics that make it useful for identification

P50 name 3 reasons evolutionary why organisms have friction ridges

P52 name 3 basic fingerprint patterns

http://policensw.com/info/fingerprints/finger07.htmluse when presentinghttp://www.chymist.com/Fingerprint%20patterns.pdf

P53 a loop fingerprint( url above)Describe the basic pattern

Describe delta and coreP53 based on delta and core, how can you tell a loop from a whorl? ( url above)

P53 how can you tell a loop from an arch? ( url above)

P54 explain the primary Henry-FBI classification number for fingerprints

P57 Henry-FBI classification number puts the suspect into a class. Let’s individualize:

Name 5 of 200 types of fingerprint minutia

P 57 how many points of comparison must match to get a positive match between suspect and crime scene

P59 how do you visualize latent prints on nonabsorbent materials using powder?

P59 developing latent prints on porous materials:IodineNinhydrinSilver nitrateSuperglue fuming(on non porous surfaces)P62 name all human skin surfaces that have friction ridges

P63 what part of the skin forms the friction ridge component which determines the structure of the printshttp://ridgesandfurrows.homestead.com/friction_skin.html

P69 how does IAFIS work?

Just for fun:http://ridgesandfurrows.homestead.com/pictures.htmlhttp://www.xs4all.nl/~dacty/comparis.htmhttp://www.xs4all.nl/~dacty/noprints.htmhttp://www.xs4all.nl/~dacty/newpage12.htmhttp://www.xs4all.nl/~dacty/strange.htmhttp://www.fbi.gov/hq/cjisd/takingfps.htmlgood for inked prints

Lab/Activity Ideas: do each activity with fingers and toes!!!!!!!!!

Activity One Taking Exemplar Prints: inkpad, white balloon to enlarge, 10 print card with Henry-FBI classification number for all team members/class members fingerprint file with primary classification: keep fingerprint cards all semester for crime scenes

http://www.fbi.gov/hq/cjisd/takingfps.htmlgo here for movie on rolling prints scroll down!!

1. finding fingerprint minutia (advanced class)2. web search for products that change your fingerprints ( advanced class)

Activity Two: Developing Printshttp://school.cengage.com/forensicscience/chapter 6 intro activity dusting for printshttp://www.trutv.com/shows/forensic_files/games/fingerprint/index.htmldo this for matching prints

1. getting plastic prints: gum, paint, putty see p 64 text ( no actual lab, design one) starburst candy, softened………can I cast them?????2. getting visible prints: finger in wet material goes on hard surface: washable

paint3. getting latent prints: oil on glass, dust for print, iodine and starch, ninhydrin

and heat, superglue, silver nitrate(physical developer), fluorescence with high intensity halogen lights or LEDS:

use handout p141 Bertino

http://bsapp.com/forensics_illustrated/labs/Finger%20Print%20Lab.doc (all types)http://www.chymist.com/FINGERPRINTING.pdf

dusting: http://www.lakesideschool.org/upperschool/departments/science/forensics/documents/Lab2-Fingerprints_002.doc

http://www.crimeandclues.com/videos/blackpowder.avi video on black powder processing

My students were not getting great results with the silver nitrate, so we rubbed a very small amount of liquid hand soap onto our fingers, then touched the paper and then dipped the paper into the solution. The UV light exposed a great print within seconds.

If you do the cyanoacrylate method (super glue fuming), then you may want to purchase some ardrox solution. It fluoresces the prints on the surface that have the prints. one might want to enhance the CA prints with a fluorescent dye like Ardrox, or RAM. There are many others, most of which can be made or purchased premade. Then use a UV light to visualize and photograph.

Also you may want to purchase Ninhydrin. This you want a hood for as well. Just add heat to an area soaked with ninhydrin and they will show up purple.

Sticky sided powder: develop print with crystal violet, dust with lycopodum mixed with detergent and water. Rinse with water, should be brightly colored adhere to skin cells. http://www.redwop.com/minutiae.asp?action=showArticle&ID=84

4. budget for digital camera5. prints of palm, toes

http://www.sfs.police.uk/identification_toe_print

6. biology lab on skin….iodine for sweat pores12. computerized: http://neurotechnologija.com/verifinger.html download ahead of time!!!http://www.neurotechnologija.com/download.html#db

http://www.neurotechnologija.com/download/CrossMatch_Sample_DB.zip

Case Study Ideas

** California v Gerald Masonhttp://www.nacdl.org/public.nsf/698c98dd101a846085256eb400500c01/210173c481396f3f85256e540074c1aa?OpenDocument

http://www.trutv.com/library/crime/criminal_mind/forensics/paul_edholm/13.html (2nd semester when you have a printer)

** Augustus Winkler….altered finger prints** Pedro Ramon Velasquez (1892)** Stephen Cowenshttp://www.bu.edu/sjmag/scimag2005/opinion/fingerprints.htm(2nd semester when you have a printer)

1. John Dillingerhttp://en.wikipedia.org/wiki/John_Dillinger

2. Will West, William Westhttp://www.scafo.org/library/110105.html

http://www.lakesideschool.org/upperschool/departments/science/forensics/documents/CaseStudy-Fingerprints.doc3. Lee Harvey Oswaldhttp://www.famoustexans.com/leeharveyoswald.htm4. Brian Jeffries5. Hamm Kidnapping

http://www.fbi.gov/page2/sept03/kid090803.htm6. The Mayfield Affair Brandon Mayfield, Madrid bombing

www.brooklaw.edu/students/journals/bjlp/jlp13i_zabell.pdf7. Shirley McKie

http://news.bbc.co.uk/1/hi/programmes/panorama/1429484.stm8. Rene Ramon Sanchez

http://www.nytimes.com/2004/05/31/nyregion/31IDEN.html?ex=1401336000&en=6fc3c22e435936e1&ei=5007&partner=USERLAND

9. Stella Nickellhttp://www.truthinjustice.org/stella.htm

10. James Earl Rayhttp://crimemagazine.com/Assassinations/who.htm

11. Richard Ramerez Night Stalkerhttp://crime.about.com/od/serial/p/nightstaker.htm

14. The Weyerhaeuser Kidnappinghttp://www.fbi.gov/libref/historic/famcases/weyer/weyer.htm

video: Hunt: Fingerprinting and Ballistics B0000067J6W

Quiz: see folder, see p503 Saferstien for High School, see Saferstein p85 lesson plan book p146 Bertino

Great images:http://www.hstofs.org/digitalgoods/fingerprinting/Fingerprint%20pattern%20inquiry%20cited%20version.doc