At home: Incorporate the photographed unknown fingerprint(s) and known comparison fingerprint(s) into a single document. Using Microsoft Paint or similar a software program (ie. Adobe Photoshop), use the highlighting tools (ie. circles or squares) to highlight six minutiae points that are located in BOTH the unknown and the exemplar. Label the minutiae and classify the fingerprints in the software program (utilize the text box function to do this). Also, use the text box to include the unknown number and what piece of evidence the fingerprint was collected from. Print this document and incorporate it into your post lab question submission (question 5).
SCI 114 –Scientific Principles of Forensic Science Laboratory Exercise 5: Fingerprint AnalysisPage 6 Group Critical Thinking Questions On a sheet of paper with all your group-mate names, answer the following questions, and hand it in before you leave the laboratory. 1.Are fingerprints classified or individualized? Explain. 2.What were the classifications of each of your unknown fingerprints? 3.To whom were the unknown fingerprints individualized, and how did you determine this? Be specific. 4.Which techniques did you choose to develop each of your unknown fingerprints? Why did you choose each? 5.If the evidence is a partial fingerprint and cannot be classified, can you still make a fingerprint match to an individual? Post Laboratory Questions To be answered individually and turned in next laboratory class in a typed document. 2pts each 1.If a loop opens to the right, is it an ulnar or radial loop? How did you come to your conclusion? 2.A burglar breaks into a house through the window, and steals jewelry from the bedroom drawers. What kinds of items can you try to develop any fingerprints off of that may have been left behind? 3.List two other fingerprint development techniques not used in class, and briefly describe them. 4.When should a fingerprint be “lifted” from a crime scene? Describe how to lift and preserve a fingerprint using adhesive tape. 5.Did you correctly identify all your unknowns? If not, for each incorrect identification, confirm mismatching minutiae points (described in step 9 of procedure). If all were correctly identified, attach a 6-point match for any one of the unknown fingerprints of your choosing and the matching exemplar.
SCI 114 –Scientific Principles of Forensic Science Laboratory Exercise 5: Fingerprint AnalysisPage 7 Report Page: Indicate the results obtained for each unknown/evidence item below. The fingerprint(s) from Evidence Item ________ is (are) consistent with _________________________. The fingerprint(s) from Evidence Item ________ is (are) consistent with _________________________. The fingerprint(s) from Evidence Item ________ is (are) consistent with _________________________. Reported on (Date):___________________ By Group Members: 1. 5. 2. 6. 3. 7. 4. 8. 1A Simplified Guide to Fingerprint Analysis. (n.d.). National Forensic Science Technology Center (NFSTC). Retrieved from - investigator.net/SimplifiedGuideFingerprints.pdf 2Saferstein, R. (2015). Criminalistics: An introduction to forensic science.