Glass Documents

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