Glass Subgroup

Forensic Glass Examination

Glass examination sample
A comprehensive guide to forensic glass analysis and examination techniques.

Process To Create

  • Drafts offered to community for comment
  • Comments reviewed by the glass subgroup and incorporated or denied. All changes presented to the full SWG for their review.
  • Final draft voted on by full SWG - If approved, submitted to ASTM for incorporation
  • Enforcement – Voluntary

Documents

Introduction to Forensic Glass Examination

A primer of glass examination and its associated nuances; to limit the number of glass analysis misconceptions in law enforcement

Collection, Handling, and Identification of Glass

To improve quantity and quality of evidence submission
Initial Examinations of Glass

A primer to assist management with training and to assist current glass analysts

Glass Fractures

The action and resulting characteristics of glass fractures
Glass Density Determination

Methods and process of density measurements and the application to glass analysis; to provide a standard application of density measurements for the forensic analyst

Glass Refractive Index Determination

Methods and process of refractive index measurements and the application to glass analyst

Elemental Analysis of Glass

To provide a basic understanding of different types of glass, glass characteristics, and using elemental components in analysis

Forensic Glass Comparison: Background Information Used in Data Interpretation

ASTM Standards

E1967 - 11a Standard Test Method for the Automated Determination of Refractive Index of Glass Samples Using the Oil Immersion Method and a Phase Contrast Microscope E2330 - 12 Standard Test Method for Determination of Concentrations of Elements in Glass Samples Using Inductively Coupled Plasma Mass Spectrometry (ICP-MS) for Forensic Comparisons E2926 – 13 Standard Test Method for Forensic Comparison of Glass Using Micro X-ray Fluorescence (m-XRF) Spectrometrys E2927 – 13 Standard Test Method for Determination of Trace Elements in Soda-Lime Glass Samples Using Laser Ablation Inductively Coupled Plasma Mass Spectrometry for Forensic Comparisons

Members

Stefan Becker

Bundeskriminalamt Kriminaltechnisches Institute

Maureen Bottrell

FBI Laboratory

Brenda Burton

Centre of Forensic Sciences

JoAnn Buscaglia

FBI Laboratory, Counterterrorism and Forensic Science Research Unit

Russell Davis

Lake County Regional Forensic Lab

Bob Koons

Carolyn Krausher

RCMP

Thomas Kubic

TAKA Inc.

Jodi Webb

FBI Laboratory