According to the LA Times, a National Academy of Sciences report concludes that evidence about fingerprints, ballistics, bite marks and other forensic evidence often have little or no bais in science. Of course in DUI / Drunk Driving cases, breath, blood and urine testing methods and results come with the field of forensic science. A highly skilled DUI / Drunk Driving defense attorney is aware of these scientific shortcomings and uses this information to make sure people arrested for DUI / Drunk Driving are treating fairly. One of the recommendations made in the report requires crime labs become independent of law enforcement. This recommendation would significantly reduce the bias testimony elicited by the government, especially in DUI / Drunk Driving prosecutions.