Random breath testing of drivers for excess alcohol in the blood is a policy that intends to bring down the number of drink drivers. If the driver failed the test, they would be prosecuted and mostly likely punished. However, some countries (such as the UK) have laws that state that drivers can only be tested if officers have a reason to believe that they have been drinking, usually because of the erratic manner in which they have been driving. This has therefore been a debate in Europe for some time. Random breath testing for alcohol is currently legal in several EU countries, and in Australia, where drivers may be stopped at any point along any road by a police officer for a "random breath test", commonly referred to as an "RBT". In the United Stated, Mothers Against Drunk Drivers has been lobbying across the country to implement random alcohol tests. Many states and municipalities have implemented such checks and many others are considering the idea.
