Impression & Pattern – Page 17 – Forensic Technology Center of Excellence

False-Positive and False-Negative Error Rates in Cartridge

Overview This webinar was presented to discuss the results and implications of an error rate study of cartridge case comparisons. The study was designed to measure false positive and false negative error rates of examiner comparisons of fired cartridge cases.…

Error & Uncertainty in Bloodstain Pattern Analysis

Overview This presentation provided a general introduction to the concepts of error and uncertainty as well as the differences between them. It will then apply these concepts to quantitative and qualitative aspects of bloodstain pattern analysis. Error and uncertainty are…

Demystifying Vacuum Metal Deposition [Archival]

Overview This course is directed to Crime Scene Investigators, Bureaus of Identification, and Forensic Science Laboratory Examiners. The information will help departments justify the cost of a Vacuum Metal Deposition (VMD) and demonstrate to the fingerprint industry that VMD has…

Collecting Footwear and Tire Impressions in Snow

Overview From footwear to tire to snowmobile impressions, snow impressions can provide extremely valuable evidence in helping to resolve criminal investigations. Unfortunately, photographing and obtaining a cast of a snow impression is often a challenge for the crime scene examiner.…

Bloodstain Documentation and Collection Methods

Overview At some point in their careers, every crime scene responder has encountered a scene where the blood present is “everywhere” and there is no clear way to begin. That feeling can be extremely overwhelming. This training will provide attendees…

ASCLD Webinar Series: Latent Prints

Overview Archival Version – This course served as an overview of the Latent Prints discipline for the crime laboratory administration. This webinar provided non-LP analysts, who manage this discipline as part of a forensic laboratory or supervise members within this…

ASCLD Webinar Series: Firearms

Overview This course serves as an overview of the field of firearms examination for the crime laboratory administration. This webinar will provide non-firearms examiners, who supervise members within this field, a basic overview of the analysis performed, discipline specific administrative…

A General Framework for the Estimation of Likelihood Ratios

Overview This talk provides a very general framework for the estimation of likelihood ratios using similarity or dissimilarity scores resulting from a comparison of two patterns that overcome this deficiency for suitably chosen similarity measures. In such instances, the likelihood…

2017 NIJ R&D Series Impression, Pattern, & Trace Evidence

Overview The NIJ Forensic Science Research and Development Symposium was a free and open meeting where attendees learned about NIJ-funded research across a variety of forensic science areas. Morning Session I – Impression, Pattern & Trace Evidence Speakers & Presentations…

2016 NSAPS Panel 2 – Victim-Centered Approaches

Overview The National Institute of Justice, through its Forensic Technology Center of Excellence hosted “Looking Ahead: The National Sexual Assault Policy Symposium” on September 8-9, 2016, in Washington D.C. The audience learned how first responders such as medical staff, victims’…

Category: Impression & Pattern (page 17)

Category: Impression & Pattern (page 17)

False-Positive and False-Negative Error Rates in Cartridge

Error & Uncertainty in Bloodstain Pattern Analysis

Demystifying Vacuum Metal Deposition [Archival]

Collecting Footwear and Tire Impressions in Snow

Bloodstain Documentation and Collection Methods

ASCLD Webinar Series: Latent Prints

ASCLD Webinar Series: Firearms

A General Framework for the Estimation of Likelihood Ratios

2017 NIJ R&D Series Impression, Pattern, & Trace Evidence

2016 NSAPS Panel 2 – Victim-Centered Approaches

Introduction

Category: Impression & Pattern (page 17)