Implied Consent, Generally
The concept of Implied Consent is that when you drive on the roads of a state, you give your consent in advance to submit to a chemical test of your bodily fluid to determine the concentration of alcohol (or other intoxicating substances) in your system. However, an officer compelling chemical testing must first establish probable cause to believe that you’ve committed an offense such as driving under the influence. All 50 states have some kind of implied consent law, which varies in details from state to state. The differences in these laws might seem miniscule on paper, but they create important contrasts in the application of the law.
Implied Consent Law in Tennessee
Tennessee’s Implied Consent law can be found in TCA Title 55, Chapter 10, Part Four. The law establishes that officers can invoke implied consent when there is probable cause to believe that the operator of a vehicle committed certain offenses, including DUI, Vehicular Assault, and Vehicular Homicide. But just because you’re considered to have already consented to testing, officers can’t just begin drawing your blood as soon as you’re arrested. Officers must ask first arrestees whether or not they’ll submit to testing. They also have to advise drivers of certain consequences for refusing. TCA 55-10-406 explains that, “Any law enforcement officer who requests that the operator of a motor vehicle submit to breath tests, blood tests, or both tests, authorized pursuant to subsection (a), shall, prior to conducting the test, advise the operator that refusal to submit to the tests:- Will result in the suspension by the court of the operator’s driver’s license; and
- May result, depending on the operator’s prior criminal history, in the operator being required to operate only a motor vehicle equipped with a functioning ignition interlock device if the operator is convicted of a violation of § 55-10-401, as described in 55-10-405.”
