If you enter an Indiana DUI checkpoint, provide the required driving documents (Driver’s License, registration and proof of insurance) and stay polite. You generally do not have to answer investigatory questions about drinking or your evening and you do not need to do field sobriety tests (HGN, walk and turn and one leg stand).. Field sobriety exercises are different from Indiana’s chemical tests, and refusing a chemical test can trigger a lengthy license suspension.
How a DUI Checkpoint Starts
Imagine this.
You’re driving home after dinner with your spouse. You had a couple of drinks, but you don’t believe you’re intoxicated.
Then you see cones. Flares. Brake lights.
An officer points at your car and waves you into a DUI checkpoint.
You roll down the window, and the first question comes quickly:
“Have you had anything to drink tonight?”
That is not necessarily small talk.
Your answer can become evidence.
Can Indiana police stop me at a DUI checkpoint without reasonable suspicion?
Yes, an Indiana sobriety checkpoint can be constitutional even when police have no individualized suspicion about you.
That makes checkpoints unusual.
During an ordinary traffic stop, police generally need a legal reason to stop your vehicle. A properly operated sobriety checkpoint works differently.
In Michigan Department of State Police v. Sitz, the U.S. Supreme Court upheld sobriety checkpoints under the Fourth Amendment. The checkpoint examined 126 vehicles, with an average delay of about 25 seconds. The Court balanced roadway safety against the limited intrusion on motorists.
Indiana has its own constitutional standard.
In State v. Gerschoffer, the Indiana Supreme Court held that sobriety checkpoints are not automatically unconstitutional under Article 1, Section 11 of the Indiana Constitution. However, the State must show that the particular checkpoint was reasonable.
Important factors include:
- A neutral plan approved by appropriate officials.
- A location and time connected to impaired-driving concerns.
- Limits on officer discretion.
- Consideration of public safety and inconvenience.
- A checkpoint designed to address roadway safety rather than general crime detection.
In other words, police may have the checkpoint. They do not get unlimited authority once you enter it.
Can Indianapolis police use a checkpoint to look for drugs?
Not when ordinary crime detection is the checkpoint’s primary purpose.
Indianapolis actually helped create the leading U.S. Supreme Court case on this issue.
In City of Indianapolis v. Edmond, Indianapolis operated roadblocks aimed primarily at finding illegal drugs. Drug-detection dogs walked around vehicles while officers stopped motorists.
The Supreme Court struck the program down.
The Court distinguished sobriety checkpoints from checkpoints whose primary purpose is ordinary crime control. Roadway safety can justify a narrowly designed checkpoint. A general fishing expedition for evidence cannot.
That distinction still matters in Indiana.
Do I have to tell police whether I drank alcohol?
Providing required documents is one thing. Answering investigatory questions is another.
Suppose the officer asks:
- “Where are you coming from?”
- “Where are you headed?”
- “How much did you drink?”
- “When was your last drink?”
Those answers may become part of the State’s evidence.
One common answer is, “I only had two beers.”
As a former prosecutor, I can tell you that “two beers” appears in DUI investigations with almost supernatural frequency.
The problem is not whether the answer sounds harmless.
The problem is what comes next.
An officer may write something like: odor of alcoholic beverage, bloodshot eyes, and admission to drinking.
Congratulations. You just helped write part of the probable-cause affidavit.
A safer approach is to politely invoke your right not to answer investigatory questions.
“I plead the Fifth.”
Four words. No argument. No roadside debate.
Be cooperative with lawful commands. Do not physically resist an officer. But you do not need to turn the checkpoint window into an interview booth.
Do I have to perform field sobriety tests in Indiana?
Field sobriety exercises should not be confused with Indiana’s statutory chemical-testing rules.
The familiar roadside exercises may include:
- Following a stimulus with your eyes.
- Walking heel-to-toe.
- Standing on one leg.
Indiana cases routinely distinguish these field exercises from the chemical testing required by the implied-consent statute.
That distinction matters because Indiana’s automatic refusal suspension is tied to qualifying chemical tests, not simply to declining roadside balance exercises.
And roadside sobriety exercises are not magic.
They are physical tasks performed under unusual conditions. You may be nervous. It may be dark. Traffic may be passing nearby. You may have uncomfortable shoes, an old knee injury, or terrible balance on your best day.
Think of it as a gym-class exam where the person grading you is also collecting evidence.
What happens if I refuse a chemical test in Indiana?
This is where the consequences become much more serious.
Indiana Code § 9-30-6-1 says that anyone who operates a vehicle in Indiana impliedly consents to the chemical-testing provisions of the law. In plain English, driving in Indiana comes with statutory testing obligations under qualifying circumstances.
Under Indiana Code § 9-30-6-2, an officer with probable cause must offer a chemical test. An officer may offer more than one test, and the driver must submit to each qualifying test to comply with Indiana’s implied-consent law.
A chemical test can involve breath, blood, urine, or another bodily substance.
Refusal can be expensive.
Under Indiana Code § 9-30-6-9, a refusal can result in:
- A one-year suspension of driving privileges.
- A two-year suspension if the driver has a prior OWI conviction.
Those consequences can apply regardless of how the criminal case ultimately ends.
This is why people get themselves into trouble by treating every roadside test as if it were legally identical.
It is not.
Declining a roadside exercise and refusing a chemical test under Indiana’s implied-consent law are two very different decisions.
Can I simply turn around before an Indiana DUI checkpoint?
A lawful turn is not the same thing as an illegal maneuver.
If you have not yet entered the checkpoint and can legally take another route, making a lawful turn does not magically become a traffic violation because a checkpoint is nearby.
But panic creates problems.
An illegal U-turn, crossing a double-yellow line, failing to signal, or committing another traffic offense may give an officer an independent basis to stop you.
And yes, police know drivers sometimes try to avoid checkpoints.
Do not turn a potentially lawful decision into a guaranteed traffic stop because you suddenly forgot every rule you learned in driver’s education.
If an officer has already directed you into the checkpoint, stop.
What is the safest way to avoid an Indiana DUI checkpoint problem?
Do not drive intoxicated.
Everything else in this article concerns constitutional rights and lawful interactions with police. None of it is a strategy for making impaired driving safe.
If you are intoxicated, the biggest problem is not what you say at the checkpoint.
The biggest problem is that you are driving.
The best four words may be the ones you say before getting into the car:
“Call me an Uber.”
The best DUI case is still the one that never exists.
If you are facing an Indiana OWI charge, a chemical-test refusal, or another issue arising from a sobriety checkpoint, contact the Marc Lopez Law Firm at 463-222-0896 to speak with a lawyer today.
And remember—always plead the Fifth.
