CJE 2671 - Latent Fingerprint Development

College of Public Safety Administration

Credit(s): 3
Contact Hours: 47
Effective Term Spring 2021 (585)

Requisites

Prerequisite CJE 2644 with a minimum grade of C and
Prerequisite CJE 2676 with a minimum grade of C and
Pre- or Co-requisite CJE 1643 with a minimum grade of C and
Pre- or Co-requisite CJL 2610 with a minimum grade of C and
Pre- or Co-requisite CJE 2645 with a minimum grade of C and
Pre- or Co-requisite CJE 2672 with a minimum grade of C

Course Description

This course emphasizes the techniques involved in detection, enhancement and recovery of latent fingerprints from physical evidence. Chemical and mechanical methods and surfaces will be analyzed and evaluated for proper application in both theory and practice.

Learning Outcomes and Objectives

  1. The student will demonstrate knowledge of the techniques involved in the detection, enhancement and recovery of latent fingerprints by:
    1. selecting the appropriate process or processes based on scene conditions.
    2. selecting the appropriate preservation and/or recovery technique.
    3. determining the correct sequential methods associated with print development.
  2. The student will develop an understanding of the appropriate application of processing techniques by:
    1. demonstrating proficiency in using the following processes to develop blood prints:
      1. Amido Black
      2. Coomassie Blue
      3. Crowle's Stain
      4. Hungarian Red
      5. Leuco-crystal Violet
      6. Tetramethylbenzidine (TMB)
      7. Diaminobenzidine (DAB)
      8. Merbromin
    2. demonstrating proficiency in locating prints using the following light energy devices:
      1. Luma Lite
      2. Omniprint
      3. ultraviolet light
    3. demonstrating proficiency in applying the following chemical dye stains associated with light energy and cyanoacrylate developed prints:
      1. M-star
      2. Ram
      3. Ardrox
      4. “DCM” (trade name)
      5. various others
    4. demonstrating an awareness of the following techniques used to develop prints on human skin:
      1. TMB
      2. DAB
      3. transfer methods
      4. magnetic powder
      5. Cyanoacrylate Fuming
      6. various others
    5. demonstrating proficiency in using the following print development techniques on non-porous surfaces:
      1. basic powders
      2. magnetic powders
      3. Iodine Fuming
      4. Cyanoacrylate Fuming
      5. Colloidal Gold
      6. physical developer
      7. alternate light sources
      8. ultraviolet light
    6. demonstrating proficiency in using the following print development techniques on porous surfaces:
      1. magnetic powder
      2. Iodine Fuming
      3. Ninhydrin
      4. Diazafluoren
      5. Colloidal Gold
      6. physical developer
      7. Silver Nitrate
    7. demonstrating proficiency in using the following print development techniques on adhesive surfaces:
      1. Gentian Violet
      2. Sticky Side Powder
      3. Colloidal Gold
      4. physical developer
    8. demonstrating proficiency in using the following print development techniques on wet porous and non-porous surfaces:
      1. small particle reagent
      2. Sudan Black
      3. physical developer
  3. The student will demonstrate knowledge of how print residues are deposited on surfaces by:
    1. recognizing and identifying the organic and inorganic constituents that make up natural fingerprint residues.
    2. identifying the conditions that lead to print deterioration.
    3. determining areas that possibly contain print residues by analyzing scene and potential evidence.
    4. recognizing surface types.
    5. recognizing environmental changes that affect print residues.
    6. determining if atmospheric changes, the quantity of residue left behind, or the texture of the surface the print was deposited on have affected the condition of the print residue.
  4. The student will demonstrate the knowledge of the three types of prints deposited at crime scenes by:
    1. determining whether a print is a latent, visible or plastic impression.
    2. identifying whether a selected print should be developed by mechanical, chemical or luminescent means.

Criteria Performance Standard

Upon successful completion of the course, the student will, with a minimum of 70 percent accuracy, demonstrate achievement of the above objectives through: 1. Multiple choice objective and short answer essay tests. 2. Mock crime scene exercises.

History of Changes

C&I 5/27/97; DBT 6/17/97 Effective Session 19971 3 Year Review 2001. Effective 20041(0340). 3 Year Review 2007,eff20081. Was CJT2241: changed by State F.R. eff 20091(0415) as Were pre/co #’s. C&I Approval: 06/22/2004, BOT Approval: 07/27/2004, Effective Term: Fall 2009 (415). C&I Approval: , BOT Approval: , Effective Term: Fall 2014 (490).
C&I Approval: , BOT Approval: , Effective Term: Spring 2021 (585)

Related Programs

  1. Crime Scene Technology (CST-AS) (620) (Active)
  2. Crime Scene Technology (CST-CT) (625) (Active)
  3. Public Safety (CJPSS-AS) (645) (Active)
  4. Public Safety Administration (PSA-TR) (670) (Active)