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Forensic sciences

Modern Death Investigation: Hub and Spoke Models for Adequate Workforce

November 2023

This webinar describes the history, structure, and operations of the Virginia Office of the Chief Medical Examiner. The system includes four regional offices staffed by forensic pathologists supervising over 100 appointed Local Medical Examiners. Decedents requiring autopsy are transported to a regional office, while most external examinations are performed in the community by appointed Local Medical Examiners.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on November 7, 2023.

Advancing Research and Collaboration in Forensic Science

November 2023

This webinar aims to provide vital information to forensic laboratories and universities that are interested in establishing research partnerships. The session starts with a review of data-sharing agreements and their importance in collaboration. The next topic highlights research partnerships, outlining ways individuals and organizations can collaborate on research projects. The final topic explores a successful research partnership between a forensic laboratory and a university, providing valuable insights on the best practices for research collaborations.

TOF/QTOF Mass Spec for Identification, Screening & Confirmation in Forensic Toxicology & Chemistry, Part II

October 2023

In this specialized workshop intended for forensic science service providers (FSSPs), we explore the increasing adoption of Time-of-Flight and Quadrupole Time-of-Flight Mass Spectrometry (TOF/QTOF-MS) technologies within forensic laboratories. The session provides an in-depth examination of various critical stages, encompassing planning, validation methodologies, analytical techniques, data review processes, and report generation. Subject matter experts disseminate knowledge and share first-hand experiences related to the utilization of TOF/QTOF-MS technology.

TOF/QTOF Mass Spec for Identification, Screening & Confirmation in Forensic Toxicology & Chemistry, Part I

October 2023

In this specialized workshop intended for forensic science service providers (FSSPs), we explore the increasing adoption of Time-of-Flight and Quadrupole Time-of-Flight Mass Spectrometry (TOF/QTOF-MS) technologies within forensic laboratories. The session provides an in-depth examination of various critical stages, encompassing planning, validation methodologies, analytical techniques, data review processes, and report generation. Subject matter experts disseminate knowledge and share first-hand experiences related to the utilization of TOF/QTOF-MS technology.

Improving Consistency in Forensic Reporting Through DEA’s GUARDS Comprehensive Methodology Compresse

December 2024

This workshop explores the impact inconsistent drug analysis reporting has on public health and public trust. The value and implementation of the Global Uniform Analysis and Reporting of Drug-Related Substances (GUARDS) innovative methodology in over 200 instruments across United States Drug Enforcement Administration (DEA) laboratories are presented, as well as the efforts of other labs of the U.S. Customs and Border Protection (CBP) and Illinois State Police.

MDI Myth: Nobody Cares About or Uses MDI Data

November 2024

Misconceptions abound regarding the role of medicolegal death investigation (MDI) professionals, particularly the pervasive belief that they solely work with and for the deceased. This perception often leads to a public reluctance in engaging with medical examiner and coroner (MEC) systems, especially from stakeholders who hold the proverbial purse strings. The reality is, MDI data impacts the living, from assisting grieving families to influencing public health at regional and even national levels.

Quantitative Analysis Method For Tetrahydrocannabinol Isomers

June 2024

Of recent, forensic toxicology laboratories have been grappling with the emergence of tetrahydrocannabinol isomers within biological specimens. Traditional methodologies are often inadequate in the separation of Δ9-tetrahydrocannabinol and Δ8-tetrahydrocannabinol, which are the most common isomers identified in forensic testing.

Forensic Use Of GPR And LiDAR Technology For Clandestine Grave Detection

April 2024

Following a multi-month course of data collection using simulated human gravesites, Ground-Penetrating Radar (GPR) researcher Jordan Mullikin will discuss the advantages and disadvantages of GPR for the detection of unmarked graves. Additionally, this webinar will explore Light Detection and Ranging (LiDAR) technology for the same purpose and investigate the potential integration of both technologies for optimal detection of clandestine graves within the law enforcement and forensic communities.

The Increased Value of Forensic Science to Lead Gun Crime Investigations Compressed

January 2024

Numerous crime laboratories have witnessed a surge in gun-related evidence submissions, leading to an increased demand for DNA testing and entry into the National Integrated Ballistic Information Network (NIBIN) for firearms-related investigations. Simultaneously, the forensic value of firearms analysis has substantially grown, owing to advancements in DNA technology and the expansion of the NIBIN database. Consequently, several forensic labs have established dedicated units specifically focused on comprehensive firearms analysis.

Vaping in the Weeds: The Merging of the E-cigarette and Cannabis Industries

June 2023

This presentation describes the nature of the merge of the e-cigarette and cannabis industries. Quality assurance issues as a result of the absence of regulation and oversight is described. Cases of self-reported adverse events and the challenges of cannabis product analysis are also discussed.

This webinar was hosted by the NIJ Forensic Technology Center of Excellence on June 29, 2023. 

Development of Analytical Methods for Measuring Δ9 THC in Cannabis Products

June 2023

With the passage of the 2018 Agricultural Improvement Act (Farm Bill), forensic laboratories have been tasked with differentiating seized cannabis samples as either hemp or marijuana. The new legislation declassified hemp as a Schedule 1 drug substance and defined it as cannabis containing 0.3 % or less of decarboxylated-Δ9-THC (total Δ9-THC). The National Institute of Standards and Technology (NIST) has been working to help forensic laboratories with these challenging measurements through the development of extraction protocols and analytical methods.