What is a field sobriety test?

A field sobriety test is given usually before an arrest is made for DUI.  It is called a "field sobriety" test because it's done outside near your car.  This usually consists of a walking a straight line, reciting the alphabet, touching you fingers to you nose with your eyes closed, etc. and there is also alcohol alcohol test like a breathalyzer, but it's a small device the police you to determine your blood alcohol content at the scene.  It usually is not admissible in court for scientific reasons.  I don't think the "implied consent" laws apply to this defice. An implied consent means you agree to take a chemical test of your blood or breath, and in some states urinalysis. If your refuse, the DMV can take your license for months, even though you may be innocent of the DUI charges.  You do not have to take the field sobriety test, but you must take the blood, breath, chemical tests.