NOV 19 1966, NOV 20 1966; Breathalyzer dial shows content of 18 percent alcohol in suspect's blood. The Breathalyzer test isn't as accurate as the laboratory blood-alcohol test and almost always shows a lower alcohol content. In this case, the lab test showed 22 percent. By law, an alcohol content of 15 percent is prima facie evidence of drunkenness.; (Photo By Bill Peters/The Denver Post via Getty Images)
