EMBED >More News Videos A toxicology analyst was found not to have proper training, Ted Oberg reports.

HOUSTON (KTRK) -- The Harris County District Attorney is asking defense attorneys to review a decade's worth of their DWI cases looking for possible errant testimony from a Harris County toxicology analyst.According to a notice sent by the District Attorney's office last night, "Dr. Fessessework Guale of the Harris County Institute of Forensic Sciences may have testified in past trials that she received her Master's (sic) of Science degree in Toxicology when, in fact, she received her Master's (sic) of Science degree in Physiological Sciences (with coursework and research in toxicology)."A review of Dr. Guale's resume however reveals that degree is from a veterinary college. She also holds a doctorate in veterinary medicine from an Ethiopian veterinary school as well.The Harris County Institute of Forensic Sciences says she is being retrained. They are confident in her expertise despite the resume issues.