What is the "breathalyzer" test used for in Ohio?

The breathalyzer test is used to measure a driver's blood alcohol concentration (BAC). In Ohio, as in many other states, law enforcement officers use this device during traffic stops when there is suspicion that a driver may be operating a vehicle under the influence of alcohol.

The test works by having the driver blow into the device, which measures the amount of alcohol present in their breath. This measurement is then used to estimate the driver’s BAC, which is critical in determining whether the driver is above the legal limit for operating a vehicle.

Understanding the implications of a breathalyzer result is essential for law enforcement, as it serves as evidence in cases of DUI (driving under the influence) and is a key component in promoting road safety. Other choices, such as checking vehicle emissions, assessing reaction time, or determining age, do not relate to the purpose of the breathalyzer, which is specifically focused on alcohol concentration in support of traffic safety laws.