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Forensic sciences

Transient Workforce in Forensic Pathology: Challenges, Rewards Compressed

November 2023

A roadmap to successfully utilizing contract forensic pathologists, also known as locum tenens, was presented by a Chief Medical Examiner and a Coroner with extensive experience in employing these useful contractors to perform forensic autopsies and other professional tasks in today’s environment of increasing caseloads. Topics include the forensic pathologist workforce shortage, scheduling, budgeting, fee structures, and different business models for the use of locum tenens forensic pathologists in busy Medical Examiner and Coroner offices. \

Expert Forensic Communication: Best Practices and Common Pitfalls

November 2023

A world in crisis and a 24/7 media cycle demands consistent, clear, and effective communication from organizations tasked with death investigation and related responsibilities. Two seasoned professionals share their experiences reaching diverse stakeholders and engaging the public in the vital work of the largest medical examiner’s office in the country.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on November 28, 2023.

Improving Methods Using Machine Learning and Databases in Forensic Anthropology

December 2023

Part I: GeoFOR is a free web-based collaborative forensic taphonomic application and database that utilizes geospatial technology and machine learning to deliver data-driven postmortem interval estimations to better facilitate identification and reconstruct events around the time of death. This presentation describes the geoFOR application and its potential for advancing the field of forensic science.  

Solving Violent Crime Through Lawfully Owed DNA: Outcomes of Efforts to Address Missed DNA Samples

April 2023

This presentation explores the issue of lawfully “owed” DNA, which is a DNA sample from a qualifying offender who should have their DNA sample in CODIS (based on applicable state law), but from whom a sample has never been collected or submitted to a lab for testing.

Maintaining a Positive Quality Culture during Change

January 2023

This webinar shares insight into why it is important to have a positive quality culture within a laboratory. Attendees see how establishing a culture where the proactive pursuit of quality is a positive for a laboratory. When actively pursuing quality, staff will help management navigate and be successful during the time of change. The presentation discusses how change, whether small or large, can be perceived and affect employees differently, and will provide some strategies on how to mitigate the effect change could have on their employees.

The State of Standard Development & Tools for Assessing and Implementing Standards

January 2023

This webinar introduces attendees to the Organization of Scientific Area Committees for Forensic Science (OSAC) Registry of Standards, the International Organization for Standardization (ISO) Technical Committee (TC) on Forensic Science, and the Academy Standards Board (ASB). Attendees learn about forensic science standard development in the national and international space as well as standard implementation tools provided by the National Institute of Standards and Technology (NIST) and the American Academy of Forensic Sciences (AAFS).

2025 NIJ Forensic Research and Development Symposium

The Forensic Technology Center of Excellence assisted the National Institute of Justice in hosting the annual NIJ Forensic Science Research and Development Symposium on Tuesday, February 18, 2025 at the 77th Annual American Academy of Forensic Sciences meeting in Baltimore, Maryland. 

Watch the recordings of the opening remarks and four sessions, each focused on a different discipline.

Driving Success: Leadership Principles for Building the Right Team

March 2025

Successful leadership is more than just managing people—it’s about assembling the right team, placing individuals in roles where they thrive, and fostering a culture of accountability and collaboration. This session explores key leadership principles based on the concept of "getting the right people on the bus" and ensuring they are in the right seats. Strategies for identifying talent, aligning team strengths with organizational goals, and creating an environment where individuals feel empowered to contribute their best are discussed.

Validation of a Confirmatory Proteomic Mass Spectrometry Body Fluid Assay

December 2023

While forensic DNA analysis can identify an individual(s) at a crime scene, it cannot identify the biological source from which that DNA was obtained – e.g. blood, saliva, or semen. Identification of the biological source of DNA can provide important contextual information for forensic investigations as well as evidence in court. Nearly all current methods used for body fluid identification are presumptive. Here we present a new proteomic mass spectrometry method for the confirmatory identification of blood, saliva, and semen.

Physical Characteristics of Spatter Stains on Textiles Compressed

December 2023

It is well-known that bloodstain pattern analysis (BPA) on textiles is difficult and subject to many errors or misinterpretations. In this webinar, we probe the reason for this and suggest useful information that a bloodstain pattern analyst may be able to extract from the observed bloodstains. The data set demonstrates the roles of drop volume and impact speed in bloodstain formation on textiles.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on December 12, 2023. 

Cannabinoid Conundrums Webinar Series Expert Panel

August 2023

As evident by the Cannabinoid Connundrums webinar series, the rapidly changing world of cannabinoids offers many conundrums. To tackle some of these questions, Dr. Ruth Winecker led a panel discussion with Dr. Ed Cone, Dr. Nathalie Desrosiers, Mr. Justin Poklis, and Mr. Nelson Santos. This diverse slate of thought leaders includes experts in analytical chemistry, forensic toxicology, clinical research, and drug chemistry. This webinar was hosted by the NIJ Forensic Technology Center of Excellence on August 3, 2023. 

Cannabinoid Pharmacology: Three Decades of Controlled Human Cannabinoid

August 2023

Controlled drug administration studies are valuable tools for acquiring a detailed understanding of the pharmacodynamic and pharmacokinetic profiles of cannabinoids. ∆9-tetrahydrocannabinoid (THC) is the primary psychoactive cannabinoid in cannabis with the potential to negatively impact cognitive and psychomotor performance and workplace safety. These studies establish behavioral and subjective effect profiles while simultaneously collecting pharmacokinetics data.

Bridging Generational Gaps in the Laboratory

March 2023

This webinar addresses a common cross-cultural issue experienced every day in the crime laboratory and within the greater criminal justice community, the generation gap. Simply defined as the different outlooks or opinions between individuals of different generations, this complex topic can create division within a workforce or, if understood, can elevate personnel to achieve organizational goals.

All Is Not Pot That’s Green: An Overview of THC Isomers

June 2023

THC isomers, also known as THC analogs or semi-synthetic cannabinoids, are structurally related to Δ9-tetrahydrocannabinol (Δ9-THC) and have similar toxicity and impairing effects. A recent study indicated that Δ8-THC use was around 27% of marijuana use, based on detection and ratios of cannabinoid metabolites in workplace drug testing. Other analogs of interest include hexahydrocannabinol (HHC) and THC-O. THC isomers are generally perceived as legal and are also seen in states with legal marijuana.

Age Estimation from the Pubic Symphysis: Back to Basics

January 2023

The pubic symphysis joint on the pubic bone is frequently used in anthropology to estimate age-at-death in late adolescent and adult individuals. This webinar will provide a background on the age indicator, as well as a review of the anatomical features used in the age estimation methods based on this joint. The primary focus of the webinar is to help participants better interpret the written phase descriptions in pubic symphysis age estimation methods.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on January 11, 2023.

Advances in Chemical Sorting of Commingled Remains Compressed

November 2023

Forensic anthropologists face the challenge of sorting remains from commingled assemblages. This webinar examines how chemical signatures of bone can complement physical reassociation strategies. Laser-induced breakdown spectroscopy (LIBS) offers rapid, visually non-destructive analysis that acquires chemical information from bone. Statistical evaluation of chemical profiles taken across 1284 bones from 45 individuals reveals that physicochemical variation exists between individuals and, consequently, can be used to classify the bones.

Using Risk Management to Optimize Forensic Laboratory Operations

June 2022

The use of risk management has been historically absent from the management of forensic science laboratories. While ISO 31000 (Risk Management Principles and Guidelines) and ISO 9001 (Quality Management System) emphasized risk management, it was not until ISO/IEC 17025: 2017 highlighted its importance that forensic science managers began to take note. Even since its inclusion in ISO/IEC 17025, there remains a misunderstanding on what risk management is and how it can be used to improve laboratory operations.

Trauma Informed Investigations for Sexual Assault Cases

April 2022

This webinar will highlight the importance of conducting a victim-centered, trauma-informed investigative interview for sexual assault cases. Trauma-informed investigative interviews lay the foundation for improved victim engagement with the criminal justice system and increased ability to resolve sexual assault cases.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on April 26, 2022

Transition Analysis 3 Age at Death Estimation: Past, Present, and Future

December 2022

The Transition Analysis 3 (TA3) age-at-death estimation method was developed as part of an international research project supported by National Institute of Justice (NIJ) award #2014-DN-BX-K007. This presentation provides a brief history of the TA3 project from its beginnings in the late 1990s to its current status two decades later. Participants learn about the iterative process used to identify traits and develop definitions and are introduced to the TA3 trait manual and generic data collection form.

Skeletal Sex Estimation and Practitioner Use of MorphoPASSE final

October 2022

This presentation briefly discusses the current state of skeletal sex estimation in forensic anthropology. The primary focus of this presentation is on the MorphoPASSE: Morphological Pelvis and Skull Sex Estimation database and program for skeletal sex estimation. The presentation details the revised trait descriptions and scoring procedures, with examples, and demonstrates how to use the MorphoPASSE graphical user interface and interpret the output.

Intro and Basics of Statistics for Forensic Toxicology

May 2024

This session provides an overview of the fundamental principles of statistics as encountered and applied in forensic toxicology. Various elements of statistics are often utilized or relied upon by scientists to describe produced results and to demonstrate if forensic instruments or processes are “working” or “in-control”. Here we establish the basic terminology for the principles of statistical analysis. Participants will begin to be better equipped to interpret and analyze forensic toxicology data accurately and effectively.