Skip to content

Resources

CSAFE’s Latest Resources

Change cannot happen without community. CSAFE is passionate about achieving its mission to apply a statistically sound and scientifically solid foundation to the interpretation of forensic evidence. To that end, we invite fellow scientists and researchers, along with those in the forensic and legal communities, to use and share these resources as we work together to elevate forensic science and technology.

Knowledge Transfer

  • Type

  • Topic Area

Found 242 Results
Page 2 of 25

Characterizing verification and blind proficiency testing at forensic laboratories

Type: Research Area(s): ,

Published: 2022 | By: Maddisen Neuman

The 2014 Bureau of Justice survey of publicly funded forensic crime laboratories found that while 97% of the country’s 409 public forensic labs reported using some kind of proficiency testing, only 10% reported using blind tests (Burch et al, 2016).…

View on Digital Repository


Likelihood Ratios for Categorical Evidence With Applications in Digital Evidence

Type: Research Area(s): ,

Published: 2022 | By: Rachel Longjohn

The following poster was presented at the 74th Annual Scientific Conference of the American Academy of Forensic Sciences (AAFS), Seattle, Washington, February 21-25, 2022.

View on Digital Repository


How do latent print examiners perceive blind proficiency testing? A survey of practicing examiners

Type: Research Area(s): ,

Published: 2022 | By: Brett Gardner

The current study sought to explore perceptions of BPT among practicing latent print examiners and determine whether such beliefs varied between examiners who work for laboratories with and without BPT. Overall, opinions regarding the value of BPT to accurately assess…

View on Digital Repository


Statistical support for weight of evidence determinations of handwriting evidence

Type: Research Area(s): ,

Published: 2021 | By: Danica Ommen

Handwriting analysis is conducted through the expertise of Forensic Document Examiners (FDEs) by visually comparing writing samples. Through their training and years of experience, FDEs are able to recognize critical characteristics of writing to evaluate the evidence of writership. In…

View on Digital Repository


Score-Based Likelihood Ratios for Camera Device Identification Using Cameras of the Same Brand for the Alternative Device Population

Type: Research Area(s):

Published: 2022 | By: Stephanie Reinders

Score-based likelihood ratios are a statistical method for quantifying the weight of evidence and have been used in many areas of forensics, including camera device identification1,2,3. Small sensor imperfections caused during manufacturing, called photo response non-uniformity4, leave identifying features, called…

View on Digital Repository


Forensic Analysis on Cryptocurrency Wallet Apps

Type: Research Area(s):

Published: 2022 | By: Chen Shi

The following was presented at the 74th Annual Scientific Conference of the American Academy of Forensic Sciences (AAFS), Seattle, Washington, February 21-25, 2022.

View on Digital Repository


Mobile steganography: Looking to the future

Type: Research Area(s):

Published: 2021 | By: Jennifer Newman

Humans have sent secret messages for millennia. A cousin to cryptography, steganography is the art and science of sending a secret message in the open by camouflaging the message carefully. Steganography can take many shapes, and its digital form often…

View on Digital Repository


Ensemble of SLR Systems for Forensic Evidence

Type: Research Area(s): ,

Published: 2022 | By: Federico Veneri

Score-based likelihood ratios (SLR) have been used as an alternative to feature-based likelihood ratios when the construction of a probabilistic model becomes challenging or infeasible [1]. Although SLR has been shown to provide an alternative way to present a numeric…

View on Digital Repository


Blind Testing in Firearms Examination: Preliminary Results, Benefits, Limitations, and Future Directions

Type: Research Area(s): ,,

This CSAFE webinar was held on June 23, 2022. Presenters: Maddisen Neuman Quality / Research Associate, Houston Forensic Science Center   Presentation Description: Open proficiency tests created by external vendors are used to meet accreditation requirements and demonstrate examiner competence;…


Surveying Practicing Firearm Examiners

Type: Research Area(s): ,

Published: 2022 | By: Nicholas Scurich

A sample (n = 79) of practicing firearm and toolmark examiners was queried about casework as well as their views about the potential role that statistics might play in future firearm examinations and expert witness testimony. Principal findings include: The…

View on Digital Repository


Page 2 of 25