Police begin to follow a vehicle after observing the driver turn without using a directional signal. The officers then observe more erratic driving and pull the vehicle over. Officer notes a distinct odor of alcohol and behavior consistent with someone under the influence. Field sobriety tests are conducted, results lead to an arrest. Post arrest breath tests result .15. Defense files motions to exclude the breath test and dismiss criminal complaints due to loss or destruction of exculpatory evidence. DWI charge dismissed prior to trial.