The Week 86 Forensic Science Geek of the Week is Announced

The Forensic Science Geek of the Week

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Forensic Science Geek of the Week

The week 86 “ Forensic Science Geek of the Week” honors goes to: George Schiro

According to our Geek, the following is offered:

George Schiro, MS, F-ABC is a consulting Forensic Scientist operating a consulting company called “Forensic Science Resources” located in Cade, LA. He received a Master of Science in Industrial Chemistry-Forensic Science which included five hours of credit in Forensic DNA Analysis of Biological Materials and accompanying lab course, three hours of credit in Quality Assurance and Bioinformatics, three hours of credit in Biochemistry, two hours of credit in Forensic Analysis of DNA Data, and three hours of credit in Experimental Statistics University of Central Florida, Orlando, FL. He received his Bachelor of Science in Microbiology including three hours of credit in Genetics from the Louisiana State University, Baton Rouge, LA. He holds a certificate of Professional Competency in Criminalistics, and is Fellow of the American Board of Criminalistics, Specialty Area: Molecular Biology.

George Schiro is a forensic scientist with over 25 years experience. He has been court qualified as an expert in crime scene investigation/reconstruction, DNA analysis, shoeprint identification, blood spatter interpretation, latent fingerprint development, serology, forensic science, trajectory reconstruction, fracture match analysis, and hair comparison. He has qualified over 160 times in 30 Louisiana parish courts, two Louisiana city courts, federal court, and county courts in Arkansas, California, Florida, Mississippi, Missouri, Nevada, New York, Texas and West Virginia. He has also consulted on cases in 24 states, for the United States Army and Air Force, and the United Kingdom. Throughout his career he has worked approximately 3200 cases.

His work has been featured on TV shows and in books. He regularly consults with TVs and movies.

The CV of our Geek of the Week can be found here.

Congratulations to our Forensic Science Geek of the Week winner!


1. What is reported in this picture?

2. Are there known issues with the method of testing, if so what, if not, why not?

Our Geek of the Week answered:

1. This is a diagram demonstrating the results of a “positive” paraffin test showing the presence of nitrates. Given the date and description, it is most likely from the right hand of Lee Harvey Oswald.

2. In 1933, Teodoro Gonzalez of the Criminal Identification Laboratory in the Mexico City introduced this test into the United States. The test was conducted by applying melted paraffin to an individual’s hand(s), allowing it to cool, then removing the solidified paraffin casts. The casts were then treated with diphenylamine and diphenylbenzidine. Nitrates would then show up as blue or violet dots in the cast. At one time, this was thought to be conclusive for the presence of nitrates and nitrites originating from gunpowder; however, it has since been shown that nitrates and nitrites are quite ubiquitous. The diphenylamine and diphenylbenzidine react with many common oxidizing reagents, soil, fertilizer, tobacco, pharmaceuticals, urine, cosmetics, and many other compounds. The paraffin test is non-specific and is of no use in detecting gun shot residues. To the best of my knowledge, it is no longer used by crime labs.

[BLOGGER’S NOTE: There are still some local crime laboratories that use this form of testing. Otherwise, we cannot possibly add to this entry. It was perfect! Well done. Check out next week’s contest soon.]

The Hall of Fame for the Forensic Science Geek of the Week:

Week 1: Chuck Ramsay, Esquire

Week 2: Rick McIndoe, PhD

Week 3: Christine Funk, Esquire

Week 4: Stephen Daniels

Week 5: Stephen Daniels

Week 6: Richard Middlebrook, Esquire

Week 7: Christine Funk, Esquire

Week 8: Ron Moore, B.S., J.D.

Week 9: Ron Moore, B.S., J.D.

Week 10: Kelly Case, Esquire and Michael Dye, Esquire

Week 11: Brian Manchester, Esquire

Week 12: Ron Moore, B.S., J.D.

Week 13: Ron Moore, B.S., J.D.

Week 14: Josh D, Lee, Esquire

Week 15: Joshua Dale, Esquire and Steven W. Hernandez, Esquire

Week 16: Christine Funk, Esquire

Week 17: Joshua Dale, Esquire

Week 18: Glen Neeley, Esquire

Week 19: Amanda Bynum, Esquire

Week 20: Josh D. Lee, Esquire

Week 21: Glen Neeley, Esquire

Week 22:  Stephen Daniels

Week 23:  Ron Moore, B.S., J.D.

Week 24: Bobby Spinks

Week 25:  Jon Woolsey, Esquire

Week 26: Mehul B. Anjaria

Week 27: Richard Middlebrook, Esquire

Week 28:Ron Moore, Esquire

Week 29: Ron Moore, Esquire

Week 30: C. Jeffrey Sifers, Esquire

Week 31: Ron Moore, Esquire

Week 32: Mehul B. Anjaria

Week 33: Andy Johnston

Week 34: Ralph R. Ristenbatt, III

Week 35: Brian Manchester, Esquire

Week 36: Ron Moore, Esquire

Week 37: Jeffrey Benson

Week 38: Pam King, Esquire

Week 39: Josh D. Lee, Esquire

Week 40: Robert Lantz, Ph.D.


Week 42: Steven W. Hernandez, Esquire

Week 43:Ron Moore, Esquire

Week 44: Mehul B. Anjaria

Week 45: Mehul B. Anjaria

Week 46:Ron Moore, Esquire

Week 47:Ron Moore, Esquire

Week 47:Ron Moore, Esquire

Week 48: Leslie M. Sammis, Esquire

Week 49: Ron Moore, Esquire

Week 50: Jeffery Benson

Week 51: Mehul B. Anjaria

Week 52: Ron Moore, Esquire

Week 53: Eric Ganci, Esquire

Week 54: Charles Sifers, Esquire and Tim Huey, Esquire

Week 55: Joshua Andor, Esquire

Week 56: Brian Manchester, Esquire

Week 57: Ron Moore, Esquire

Week 58: Eric Ganci, Esquire

Week 59: Ron Moore, Esquire

Week 60: Brian Manchester, Esquire

Week 61: William Herringer, Esquire


Week 63: Ginger Moss

Week 64: Richard L. Holcomb, Esquire

Week 65: John L. Buckley, Esquire

Week 66: Jeff Sifers, Esquire

Week 67: Josh D. Lee, Esquire

Week 68: Dr. Barbara Vonderhaar, PhD.

Week 69: Christine Funk, Esquire

Week 70: Mehul B. Anjaria

Week 71: Ron Moore, Esquire

Week 72: Mehul B. Anjaria

Week 73: Josh D. Lee, Esquire

Week 74: Kim Keheley Frye, Esquire

Week 75: Mehul B. Anjaria and Peter Carini, Esquire

Week 76: Kim Keheley Frye, Esquire

Week 77: Mehul B. Anjaria

Week 78: Steven W. Hernandez, Esquire


Week 8o: Justin Harris, Esquire


Week 82: Jay Tiftickjian, Esquire


Week 84: Steven W. Hernandez, Esquire

Week 85: Pat Arata, Esquire

Week 86: George Schiro

Week 87: Jay Tiftickjian, Esquire

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