Agenda

Tuesday, April 21st

General Session
6:30a – 8:00a Registration (Coffee & Danish)
8:00a – 8:30a Opening Ceremony

8:30a – 10:00a Cryptocurrency: This presentation is designed for all law enforcement, evidence custodians, prosecutors, or financial/fraud investigators involved in investigations (drug trafficking, fraud, child pornography (CSAM), identity theft, “sextortion”, human trafficking, etc.). Attendees will learn cryptocurrency basics, identifying suspect wallets, exposure to tracing cryptocurrency, how to identify suspects, obtaining in-depth cryptocurrency records, and freezing/seizing illicit cryptocurrency even when located outside your state or overseas. Real world case studies involving fraud, drug trafficking and CSAM will be discussed. The attendee will learn how to investigate the cryptocurrency elements of any type of investigation from start to finish. Examples will be provided to help identify these types of crimes, collect the crucial pieces of information, and understand which investigative steps are time sensitive. With the discussed principles and access to the provided cryptocurrency tracing resources, tracing cryptocurrency is as simple as tracing fiat currency. Strategies to convey this to prosecutors and judges will be discussed. Finally, best practices in implementing agency cryptocurrency policy, with an emphasis on storing and handling recovered cryptocurrency, will be covered. Detective Scott Simons (Greenfield Police Department)

10:00a – 11:00a Video Redaction Laws: Ryan Heiden (Von Briesen)
11:00a – 12:00p P&E Forum Property & Evidence Committee
12:00p – 1:00p Photo & LUNCH
1:00p – 2:00p Crime Lab Updates: Kathy Mahnke (Forensic Case Manager), Taylor Rock (Evidence Specialist), Laura Matson (Advanced Latent Print/Footwear Examiner)
2:00p – 4:00p Cellphone Wipes & Returns: This presentation will discuss the options available for wiping and returning digital evidence items, such as cell phones and hard drives. The presentation will cover common challenges that are faced, such as cell phone security features that are designed to prevent these items from being wiped. There will also be a discussion on cloud-based digital data and what consideration should be given to those sources. Attendees will leave this presentation with an understanding of the best practices of how to wipe items so that they can be returned. DEU Manager Matthew Oleson (DCI)
3:00p – 3:15p Snack/Beverage Break
4:00p – 5:00p John Doe Case Study: Deputy Josh Henry (Burnett County Sheriff’s Office)

Tuesday Breakout Sessions: 8:30a – 12:00p & 1:00p - 5:00p Repeated

Footwear: Footwear evidence is commonly overlooked, but it is arguably the most common evidence which can be
found at crime scenes. Searching for and detecting footwear evidence is easier than one may realize, and documenting and preserving it is no more difficult. This presentation will focus on the simple and effective photographic, casting and lifting techniques used at crime scenes to detect and capture this evidence. It will also emphasize the importance of footwear impression evidence, its value in investigations, and strength in standing up to scrutiny. Jan LeMay (IAI President)

Bullet Path Documentation and Trajectory Analysis with Laser Scan Data: Bullet Path Documentation and Trajectory Analysis with Laser Scan Data is a 4-hour “field to finish” workshop during which participant will learn the basics of hands-on 3-D laser scanning, diagram creation and bullet trajectory report writing. Students will use 3-D scanners to acquire data from bullet defects in simulated walls that were created prior to the workshop. While the instructors will have Leica scanners available for student use,
the workshop is not Leica specific, and students are encouraged to bring the laser scanner they use at work regardless of brand or model.

After acquiring the data students will be required to convert the data points into a usable format for investigative and courtroom presentation. 12 laptops with preloaded software will be provided for student use during the workshop, but students are again encouraged to bring and use the computers and software they use on the job. (24 attendees max) Jamie Selves & Todd Petrick (CCFS)Beyond the

Basics: Latent Print Recovery and Documentation: This hands-on workshop provides participants with a focused overview of latent print recovery and documentation techniques for both routine and complex casework. The course begins with a review of foundational principles, including powder selection, application methods, lifting techniques, and best practices for accurate documentation.

The workshop then advances into enhanced methods for documenting and collecting latent prints from difficult surfaces, emphasizing alternative lifting media, specialized powders, and effective photographic documentation. This workshop is designed for crime scene investigators, latent print examiners, and forensic personnel seeking to strengthen both foundational skills and advanced latent print recovery techniques.

Equipment Requirements: Participants are required to bring a flashlight or external light source. A camera is recommended for documentation exercises but is not required. Please dress appropriately for latent print processing. PPE and all latent print supplies will be provided. - Officer Brandie Valeri (Mount Pleasant Police Department)

12:00p – 1:00p LUNCH
3:00p – 3:15p Snack/Beverage Break

6:00p – 9:30p Networking: Boat Tour

Wednesday, April 22nd

General Session

6:30a – 8:00a Coffee & Danish
8:00a – 10:30a Overdose Death Initiative: This presentation is designed to be practical and experience-driven. The presentation will focus on a real-world overdose death investigation that began in 2024 and concluded in early 2025. He will be highlighting evidence-related lessons learned, investigative pitfalls, and tactics he would approach differently if faced with the same cases again. Emphasis will be placed on methods, technologies, and evidence-handling practices that improved investigative outcomes, with the goal of providing attendees with immediately applicable strategies they can use in the field to strengthen overdose investigations from the first response through case prosecution. - Investigator Cody Ausloos (Washington County Sheriff's Office) & Analyst Kyle Henry (Wisconsin Counterdrug Program)
11:00a – 12:00p Power of Point Cloud: This course is designed for forensic investigators in Wisconsin, providing them with the
knowledge and skills needed to utilize point cloud technology in criminal investigations and courtroom presentations. Participants will explore the process of utilizing captured 3D laser scan data using various 3D laser scanning tools, to create accurate and detailed digital
representations of crime scenes or accident reconstructions. The course will cover essential topics including data acquisition, point cloud registration, data reports and creating high- fidelity 3D visualizations. - Jamie Selves (CCFS)
12:00p – 1:00p LUNCH
1:00p – 5:00p Rolf Homicide: This presentation will provide a brief overview of the disappearance of Betty Rolf, the discovery of a crime scene less than a mile from her residence, and initial investigative steps taken. This case presentation will also discuss the importance of key physical evidence and the impact on a cold case. Furthermore, this presentation will discuss the use of forensic genealogy, practical applications at vetting of potential suspects, and the importance of DNA. Lastly, prosecutorial challenges will be discussed as well as the importance of the involvement of a multidisciplinary team to solve a very dynamic, multi-jurisdictional investigation. - Sergeant Investigator Mike Fitpatrick (Outagamie County Sheriff’s Office), District Attorney Melinda Tempelis (Outagamie County District Attorney’s Office), District Attorney Nicholas Grode (Outagamie County District Attorney’s Office), Forensic Scientist Hannah Moose-Clausen (WSCL)
3:00p – 3:15p Snack/Beverage Break

6:00p – 9:30p Networking: Boat Tour (Rain Date)

Thursday, April 23rd

Breakout Sessions

6:30a – 8:00a Coffee & Danish

8:00a – 9:45a & 10:15a – 12:00p (repeated)
Crash Reconstruction: Lieutenant Jonathan Kressin (Winnebago County Sheriff’s Office)
2-D Footwear Impressions: Basic Refresher on 2-Dimensional Footwear Impressions Workshop Participants taking this basic refresher course should attain the basic knowledge, skills and abilities associated with the discovery, processing and recovery techniques of 2-dimensional footwear impression evidence.

Participants will have practical hands-on applications using the ElectroStatic Dust Print Lifter, Vinyl Static Cling Film Lifter and Gel Lifter collection methods emphasizing a sequence of least destructive to most destructive procedures. Dan Feucht (Fox Valley Technical College)

Blood Detection/Prints: This hands-on workshop introduces participants to the scientific methods used to locate, visualize, and confirm bloodstains at crime scenes. Attendees will learn how to use chemical reagents—such as Bluestar, phenolphthalein, and leuco-malachite green — for preliminary blood identification. Students will also develop bloody fingerprints with various chemicals. Through guided demonstrations and practical exercises, participants will gain confidence in selecting the correct detection method, understanding limitations, and avoiding contamination. Ideal for investigators seeking to strengthen their forensic field skills. Dr. Michael McCutcheon (Forensic Education)

Forensic Entomology: Insect Evidence in Death Investigations - This lecture will provide an overview of the history and applications of forensic entomology, which is the use of insect evidence for investigations. The subfields of forensic entomology will be described, along with the categories of forensically relevant insects, and an emphasis on the proper collection and packaging of insect evidence. Participants will learn about the technician certification workshop, how to package and ship entomological evidence for analysis by a board-certified forensic entomologist and will understand what kind of information insect evidence can provide in death investigations. This material will be reinforced by providing several case examples that explain how insects were used to estimate the minimum time since death of decedents. Krystal Hans (Director of Forensic Science and an Assistant Professor of Forensic Entomology at Purdue University) & Randi Todorov (Washington County Medical Examiners Office)

Metal Detection: In this session, you will learn the structure of a metal detector, how it works, and how to properly maintain and store a detector. By the end of this session you should be able to:

Operate metal detectors safely and effectively at crime scenes
Identify appropriate search patterns
Avoid contaminating or disturbing evidence
Document and process metallic evidence correctly
Understand limitations and troubleshooting

(40 attendees max) Jim Winter (Digital Content Creator)

Fire-Affected Evidence: Fundamentals of Recognition, Recovery, and Analysis: This course will serve as a brief introduction to the unique characteristics and methodologies of identifying, collecting, and analyzing evidence that has been affected by fire. The course will also address concerns about operating in potentially hazardous environments in which specific evidence has been identified and resources and procedures to best protect the investigator. Christopher Forkner (retired ATF)

12:00p – 1:00p LUNCH

1:00p – 2:45p & 3:15p – 5:00p (repeated)
Advanced Scene Lighting: Scenes can present difficult lighting situations, which may produce poor quality photographs. Those situations may be caused by having high contrast daylight or one almost totally devoid of existing lighting. Having limited equipment to work with may also complicate getting a good image. This workshop will discuss and present methods to effectively produce good quality photographs when under challenging lighting situations or having to deal with large scenes in very dark conditions.

Exposure methods and flash use will be discussed, so it is recommended that attendees have some basic knowledge of photography. If you are not familiar with photographic terms don’t let that scare you off as the basic methods are good to learn- it will be illuminating. Ron Groffy (Forensic Scientist/Imaging Specialist)

It is Not Crazy to Have a SANE on Your Team: A collaborative conversation on the role of the Sexual Assault Nurse Examiner/Forensic Nurse Examiner. Learn who they are, the scope of their practice and how they can assist in the investigation and prosecution of sexual assaults and other types of interpersonal violence. You will walk away with a deeper understanding of the unique role of the SANE/FNE and an appreciation of the compassionate, expert, trauma informed care that they provide to patients who have experienced victimization. Leah Eckhart (BSN, Forensic Nursing Program Coordinator at Ascension) and Dana Stauber (BSN HSHS St. Vincent Hospital Green Bay)

Overlooking Drug Related Evidence at Crime Scenes: This session will allow attendees to view several different crime scenes with a wide variety of evidence. Attendees will determine if the items found at a scene will provide valuable information regarding the crime or crimes the individual may be involved in. Upon completion of this session attendees will be able to determine drug related and non- drug
related evidence and if that evidence has hidden meanings, determine if documents are valid or fraudulent and understand a general time of death because of toxicology results. - Joe Keil (Drug Recognition Expert)

Medical Examiner Dr. Elizabeth Douglas (Brown County Medical Examiner’s Office)

Obliterated Serial Numbers: It is highly advanced and technical in nature. Students receive hands-on training utilizing various methods to raise obliterated serial numbers from firearms, specifically with chemical etching with polishing/sanding.

Instructor will supply various chemicals, supplies, and (2) firearms to accommodate the training.

This course will consist of the following: Lectures, Safety Procedures and Materials/Equipment (PPE) Needed for SN Restorations (1 hour)

The remaining time will consist of the following:
• Note –Taking of Items Submitted
• Preparation of Surface Area Obliterated
• Acid Etchants Used
• Other Methods Used for Restoration
• Types of Metals Encountered
• Report Writing
• Tracing Report Forms for Restored SN

Upon completion of this course, the attendees will have gained a fundamental foundation and knowledge of what is necessary to restore/retrieve obliterated serial numbers from firearm

Prerequisites for Attendance:
Students will need to bring their own EYE and HAND protection please. Glasses and nitrile gloves

Class Size of maximum of (10) students per class, with a maximum of (1) student per department please.
Detective Sergeant Wayne Treep (West Allis Police Department)

Digital Multimedia: This presentation examines how SWGDE principles can be applied within a digital evidence workflow for video, concepts including integrity, contamination prevention, documentation, and reproducibility. Key stages of the workflow are discussed, including acquisition of original video files, preservation of native data and metadata, controlled examination and processing, and clear documentation of any alterations such as redaction or format conversion. Particular attention is given to challenges unique to video evidence—such as compression, proprietary formats, and playback variability—and how SWGDE-guided practices address these issues in ways analogous to handling, packaging, and analyzing physical evidence.

This approach promotes cross-disciplinary understanding, strengthens evidentiary reliability, and supports effective communication between digital evidence specialists and physical evidence examiners within a unified forensic workflow. IT Operations Manager Ryan Marquart (Village of Pleasant Prairie)

3:00p – 3:15p Snack/Beverage Break

6:00p – 10:00p Cocktails, Dinner, and Cornhole Tournament

Friday, April 24th

General Session

6:30a – 8:30a Coffee & Danish
8:30a – 10:00a Mule Homicide: This presentation will provide a brief overview of a homicide that occurred in July of 2021, in the Village of Fox Crossing. This case study will provide information on the complexity of the scene and resources that were provided to the Fox Crossing Police Department from outside resources, which will include key takeaways from the case that investigators learned throughout the duration of their investigation. - Detective Megan Denson (Fox Crossing Police Department) and Community Liaison Officer Dan Wiechman (Fox Crossing Police Department)

10:30a – 12:30p Courtroom Testimony, It’s Time to Take Control! - Courtroom testimony is a critical role that law enforcement professionals play in the Criminal Justice System. It’s our chance to explain to the trier of fact our observations, actions, and opinions in the criminal cases we all work so hard on. It really is where the “rubber meets the road”. Yet most law enforcement professionals get little to no training in this extremely important component of our jobs.

This course will inform on the various courtroom proceedings, discuss the unease we all experience sitting in the witness stand, jurors’ expectations of law enforcement witnesses, how to prepare for testimony, and how to take control and develop confidence every time you step into the courtroom. - Jan LeMay (IAI President)

12:30p – 2:30p LUNCH, General Membership Meeting, and Gun Raffle Drawing