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Police Department

DUI Unit

The DUI Unit is responsible for aggressively and proactively seeking out impaired drivers. In 2016 there were 465 DUI Arrests made from this unit alone. The arrests are extremely important when you consider the following figures. In 2016, Davidson County experienced 66 fatal crashes with 38% of those crashes involving an impaired driver.

The unit uses enforcement efforts that are designed to target impaired driving. One of the methods is DUI or Sobriety Check Points.

It is statistically proven that October is the most common month of the year to be arrested for DUI followed by March and May.

Friday is the most common night for DUI arrests with Saturday and Thursday the next most common.

Officers assigned to the DUI Unit have been trained to detect both alcohol and drug impairment. Some of the officers are certified as Drug Recognition Experts and often assist in training officers at the Metropolitan Nashville Police Academy and the Tennessee Law Enforcement Academy.

Officers are assigned with either partially marked or completely unmarked vehicles that are equipped with on-board camera systems which record and capture the driver’s actions as well as the Standard Field Sobriety Tasks. Standard Field Sobriety Tasks are designed to give the DUI officer indications of the subject’s level of impairment.

Horizontal Gaze Nystagmus
Officer performing Horizontal Gaze Nystagmus on suspect

Walk and Turn
Suspect performing walk and turn test for Officer

One Leg Stand
Suspect performing one legged stand

Once there is reasonable suspicion to believe that the subject is driving while impaired, they are required by law to submit to a breath alcohol test or blood test. Officers use a machine called an intoximeter to measure the alcohol content that is emitted from the person’s breath. These instruments are in certain officer’s police vehicles and police facilities.