Your parents or grandparents might remember the days when a drunk driver was given a warning and then escorted home by the police and told to sleep it off. Maybe you watched Mad Men and wondered if drunk driving was just a way of life back in the 60s. Until late in that decade, drunk driving laws relied on the officer’s subjective evaluations, rather than on the chemical tests that are now mandated by the law, to determine whether someone was driving under the influence of alcohol. Thus, it was not unusual, especially outside of large urban areas, for the police to find “old Jimmy” weaving his truck on his way home again and either drive him home or give him a slow-moving escort. At worst, most drunk drivers could expect fines and a lecture by a judge. Back then, there was no driving license suspension or mandatory drunk driving courses.
While chemical tests were available, California law did not mandate that a driver submit to a chemical test. It was not until the late 60s that the legislature enacted what is called the “implied consent” law. Implied consent laws were based on the premise that a driver using the roads in California impliedly consents to a blood alcohol test if he or she is legally arrested for suspicion of drunk driving. Even with the enactment of the implied consent law, the penalties for drunken driving were nowhere near as severe as they are today.
Another influence on the California DUI laws was the increasing involvement of the federal government on the state’s drunk driving policies. In 1967, the federal government issued new standards, which for the first time included drunk driving standards. These standards required the states to develop drunk driving laws to achieve a reduction in traffic accidents caused by drunken driving. Back then, and until 1990, the threshold for drunk driving was .10% blood alcohol content. The federal government enforced theses standards by withholding federal highway funds to any state that did not comply with the new standards.