Washington, DC is the second state this year that has flawed DUI tests. Can we trust the accuracy of the equipment?

Nearly 400 people were convicted of driving while intoxicated in the District since fall 2008 based on inaccurate results from breath test machines, and half of them went to jail, city officials said Wednesday.

The District's badly calibrated equipment would show a driver's blood-alcohol content to be about 20 percent higher than it actually was, Nickles said. All 10 of the breath test machines used by District police were wrong, he said. The problem occurred when the officer in charge of maintaining the machines improperly set the baseline alcohol concentration levels, Nickles said.


Link:
http://www.washingtonpost.com/wp-dyn/content/article/2010/06/09/AR2010060906257.html?hpid%3Dmoreheadlines&sub=AR