If the Glass Fits, Declare It: The Justice Department's ULTR for Glass that "Physically Fits Together"

The Department of Justice’s “Proposed Uniform Language for Testimony and Reports for the Forensic Glass Discipline” allows a broad range of...

What Is a "Conservative" Method in Forensic Statistics?

Statistical hypothesis testing involves a "null hypothesis" against an "alternative hypothesis." If data are not well ou...

Broken Glass: What Do the Data Show?

In Broken Glass, Mangled Statistics , I noted "a plethora of statistical issues" in ASTM E2926-13, a Standard Test Method for Fore...

Broken Glass, Mangled Statistics

The motto of ASTM International is “Helping Our World Work Better.” This internationally recognized standards development organization cont...

First NIST OSAC Forensic Science Standards Up for Public Comment

One of the responses to the 2009 NRC report on forensic science was the creation last year of an Organization of Scientific Area Committees ...