Ignition interlock devices are required for some drivers who have drunk driving convictions in California. For people who must use one of these devices on the vehicles they drive, it is imperative that they understand the purpose of the device and the way it works.
California residents may be interested to hear about how a DUI charge can lead to an increase in insurance rates. Many insurance companies hike up rates even after first DUI charges because of the notion that the drivers have driven drunk before the time of the DUIs. According to data from the National Highway Traffic Safety Administration, on average, first-time offenders have a blood alcohol content of around .16 percent compared to .18 percent for people who have faced DUI arrests in the past. In every state, a BAC of over .08 percent indicates intoxication and increases the risk of an accident.
There are several ways to defend against a California DUI charge. One of the most popular methods is to challenge the validity or legality of the initial stop and whether the officer had reasonable probable cause to pull over the driver. Another is to question whether sampling or performance tests were performed correctly and interpreted accurately using properly functioning equipment. However, there are certain factual defenses which may lessen or eliminate the charge altogether.