A chemist who helped design HIV testing technologies will testify as an expert witness in criminal trial of a man accused of engaging in sexual relations without disclosing his HIV positive status.  EWorldWire.com reports on the upcoming trial of Craig Lamar Davis in Clayton County, GA who has been accused of having unprotected sex with three partners after he had been diagnosed as HIV positive.

Mr. Davis asserts that he is not HIV positive, and disputes the accuracy of tests administered to him between 2009 and 2012.  Enter Dr. Rodney Richards, whose expert witness testimony will explain that none of the HIV diagnostic tests approved by the FDA can confirm the actual presence of the virus in any blood sample.  Supporting Dr. Richards’ testimony is a medical expert witness, Dr. Nancy Banks, whose testimony will directly challenge Mr. Davis’ positive tests.

This case provides a good example of a defense team seeking out expert witnesses to not only challenge a procedure broadly, but also to criticize the specific application of the procedure to the defendant.  By breaking down the process of HIV testing, and then attacking Mr. Davis’ particular HIV results, his defense attorney has utilized expert witness testimony to present the best possible defense.