Mission Statement:

Stephen Daniels is the principal of www.DUIUndo.com. He offers full service consulting to both the defense and the Government in DUI-related maters including testimony about the Intoxilyzer 8000.
DUI undo Consultants, LLC. believes that if you are guilty of driving impaired you should be held accountable for your error in judgment. However, if there is the slightest possibility that you are innocent we will do everything within our power to help you prove your innocence because… Helping innocent people “PROVE” their innocence is our first priority…!!! Please visit his website at www.DUIUndo.com

See the challenge question that our winner correctly answered.

Our winner answered the question correctly.  Please visit the www.TheTruthAboutForensicScience.com FaceBook fan page.

Our Geek of the Week answered [somewhat edited..]:

The picture is of a brass casing from a bullet. The discipline used is [Forensic Firearm and] Toolmark Analysis. When a cartridge is fired the firing pin in the firearm must strike the primer located in the rear center of the cartridge. This leaves a substantial impression. Like all manufactured components, the firing pin may have unique markings from the production process.  [Blogger’s note: This conclusion has currently yet to be validated. meaning is the firing pin impression and the striae truly uniqueness.  However, in that it is what the government contends, I gave full credit]…[Blogger’s note:  He later discussed the well-recognized deficiencies of lead bullet analysis]

I have blogged several times on the issues surrounding the modern practice of Forensic Firearm and Toolmark Analysis as well as other forms of pattern recognition:

Week 1: Chuck Ramsay, Esquire

Week 2:  Rick McIndoe, PhD

Week 3: Christine Funk, Esquire

Week 4:  Stephen Daniels

Next week’s challenge will be posted on Sunday morning at 10 am EST.

[Blogger’s note:  It should be noted that for the second week in a row Erik Brown has answered the challenge 100% correctly, but unfortunately he has answered after the first-in-time correct answers of Christine and Stephen.  So very close.]