There are two basic types of breath tests that the police use: portable breath tests, which don't often get used in court as evidence, and Breathalyzers, which operate at the police station and usually do get used as evidence.
Eyewitnesses are unreliable
After an arrest, you find yourself heading to court. The prosecution claims to have eyewitnesses from the scene of the crime. These witnesses say they saw you there and they think they can put you away for the alleged illegal activity.
