CSI and Forensic Investigation with Chemical Latent Dev & Death Investigation (Broomall, PA) Oct 7-11, 2024


This class will be held at the Marple Township, PA Police Department, 1001 Sussex Blvd., Broomall, PA 19008.

This 5-day course covers state-of-the-art methods of identifying, recording, processing and preserving various types of evidence found at the scene of the crime. The program is geared for Hands-on use of equipment, materials and supplies necessary for a thorough and comprehensive forensic investigation mission.


Forensic Investigation (Evidence Discovery, Collection, Processing & Preservation)

The goals and objectives of the Crime Scene Investigator is the collection, preservation, packaging, transportation, and documentation of physical evidence left at the crime scene.  With this evidence, a connection can be made between the victim, the scene, and the perpetrator of the crime. The base goal of this course is establishing methods and best practices for assessing, developing, collecting, and preserving the physical evidence.

Attendees learn proper set-up and crime scene documentation including photography and evidence marking / identification.  Through lecture and practical exercises, proper methods are taught for discovery and lifting of latent fingerprints using powders, applicators, tape, chemicals, and other tools.  Footprint and footwear evidence, often overlooked, is reviewed and methods for search and recovery are taught. Discovery and sampling of biological evidence, so critical in today’s forensic investigations for its DNA content, is reviewed with practical exercises with best practices for collection and preservation. Attendees also learn the proper packaging and preservation of various types of evidence, including bagging, boxing, labeling, and other methods. The course covers the forensic toolbox and the factors that lead to choosing certain methods.

  • Crime scene documentation:  photography, marking, logging
  • Evidence collection: types, proper packaging, documentation
  • Latent print development: fingerprint powders, applicators, chemicals, lifting devices
  • Biological fluids including blood: search, discovery, testing, sampling
  • Footwear impressions: search, development, collection

Chemical Development and Enhancement: Latent Fingerprints

Latent prints at a crime scene are traditionally discovered with fingerprint powders, but not every surface allows this, and many times regardless of surface, powders are not the best technique.  Porous surfaces absorb fingerprints, some surfaces are too slick or shiny to be processed well with powders, and sometimes substances on the surface can block development with powders. 

In this module, attendees learn the development hierarchy for processing porous surfaces such as paper, enhancing the various types of prints: aminos acids, lipids, and salts.  Superglue or cyanoacrylate is a common technique used on objects recovered from the scene, but many times imaging these prints can be difficult. Instruction for staining cyanoacrylate then using proper ALS lighting and filters with photography to properly capture good fingerprint images. In addition to these techniques, participants are also exposed to specialty development techniques based on surface contaminants such as oil.


Death Investigation (Documenting and Collecting Key Evidence from Scene to Autopsy)

With only approximately 60% of the 20,000+ murders occurring annually being “solved”, and many times that number of equivocal deaths requiring an investigation by law enforcement, this module is designed to provide the necessary knowledge to resolve even the most complex death investigations, including child, elderly, asphyxia, fire, firearms, fall, crushing, thermal, high velocity, motor vehicle, and sharp and blunt force deaths.  

Attendees receive a block of instruction on forensic pathology, the Coroner and Medical Examiner Systems, manner, cause, and mechanism of death.  Autopsy and medicolegal death terminology are explained including nuances between a laceration and incise wound, various blunt force trauma including differing types of fractures, and common causes for each type of wound. Firearms injuries are explored and explained including the differences in distances that can help determine whether a witness’s account is truthful or not. Time of death and post-mortem interval and other forensic concepts are discussed throughout the course.

Forensic anthropology and entomology instruction are included as it pertains to identification of found remains, skeletal trauma identification, grave recovery, and what insect activity must be observed and documented for a proper review by the forensic anthropologist and entomologist.

Each Student will receive a kit to use during hands-on exercises, and to keep.

OST250KIT Contents:
1- Perforated Notepad, 8 1/2” x 11”
1- Biofoam Impression Kit
5- Tissue Paper, #15 weight
1- Blood Evidence on Plywood
1- PIC001 Photo Scale/ID Card, 8 1/2” x 11”
1- Crime Scene Documentation Forms
2- 131WL1 Hinge Lifter, 2” x 4”, white
6- FC343 Reversible Backing Cards, 3” x 5”
2- Orange Evidence Marking Pointers
1- 101L Silk Black Fingerprint Powder, 2 oz.
1- 107L Copper Fingerprint Powder, 2 oz.
1- SB201L Silver/Black Fingerprint Powder, 2 oz.
1- M114L Black Magnetic Fingerprint Powder, 1 oz.
3- 122L Standard Fiberglass Brush
1- 123LW Marabou Feather Brush, white


1- 125L Magnetic Powder Applicator
1- 127LW Rubber/GEL Lifters, 2” x 4”, white, 12 ea.
1- 145L 1.5” Frosted Lifting Tape
4- Index cards, 3” x 5”
1- SBQ100 Fingerprint Lifting Squeegee
1- SNR100K Serial Number Restoration Kit
1- PPS800 Forensic L-Scale, 105mm x 105mm
1- PPS600 Reversible Forensic L-Scale, 300mm x 150mm
1- LTF200PR Zero Edge Protractor
1- Hemastix Blood ID Reagent Strips, 10 ea.
1- Toothbrush
1- Ballpoint Pen, black ink
1- #2 Pencil
2- Cotton Balls


2- Ziptop Bag, 9” x 12”
1- Orange Acrylic Square, 4” x 4”
1- 379M Attached case Magnifier
3- SDM100E Disposable Evidence Markers, inches
2- Wooden Paint Stirrers
3- Terry Cloth Towel
6- Cotton-Tipped Swabs
1- GLT101W GELifters, 5.2” x 7.2”, white, 10 each
1- HCB1002 Hard-Core Dental Stone, 2 lbs.
1- KCP247C5 Sterile Water, 5ml vial
1- OSTBK100 Blood Evidence Samples on paper
5- PBID1005 Blood ID Tests, Kastle Meyer Reagent
1- PBID2001 Blood ID Tests, McPhail’s Reagent
1- PSID1001 Seminal Fluid ID Test

Your Instructor

David G. Pauly, Professor, Forensic Science Program, Methodist University, Fayetteville, NC, retired from The U.S. Army Criminal Investigation Command as a Special Agent-in-Charge/Commander, Paratrooper, and Forensic Science Officer.

Dave performed duties in numerous U.S. States and foreign countries and frequently worked with local, state, and other federal agencies, as well as various non-U.S. law enforcement entities in Panama, South Korea, Afghanistan, Haiti, Kuwait, Saudi Arabia, Israel, Turkey, Egypt, Canada, Guam, and Nigeria.

Prof. Pauly holds a Master of Forensic Science degree from The George Washington University where he taught summer sessions for several years while also developing the Forensic Science Program at Methodist University from its inception to a thriving program where young students learn a comprehensive curriculum involving crime scene forensic science and criminal investigations.

Dave graduated the FBI National Academy (Session 195), Canadian Police College - Major Crimes Course, Miami-Dade Police Department - Bloodstain Interpretation Course, and National Fire Academy - Arson Investigation Course, and has completed numerous other courses, seminars, symposiums, and classes in criminal investigations, forensic science, and other law enforcement related topics.

Dave is an active Fellow of The American Academy of Forensic Science, and is a current, or past member of the International Association of Identification, North Carolina Chapters of the IAI and FBINAA, International Association of Bloodstain Pattern Analysts, North Carolina Homicide Investigator’s Association, The Vidocq Society, American Investigative Society of Cold Cases (AISOCC), and various other professional law enforcement and/or forensic science associations.

For More Info Contact:
Sergeant Nicholas Coffin #065
Office: 484.427.8178

Dave Pauly (Sirchie instructor)

The closet hotel is about 5 minutes from our station:

Fairfield Inn & Suites by Marriott Philadelphia Broomall/Newton Square
100 Lawrence Road
Broomall, PA 19008

Minimum enrollment will be 18 students with a maximum enrollment of 25 students. The cost per student is $650.00. All materials, supplies and equipment will be supplied by Sirchie. Students will be responsible for their own transportation and related per diem expenses. Individuals must register on-line no later than 5 days prior to the class, Sirchie reserves the right to cancel this class if the minimum number (18) students has not been met.

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