South Carolina’s 2026 Labor Day Sober or Slammer campaign is scheduled for August 14 through September 7, 2026. During this period, drivers in Greenville and across Upstate South Carolina may encounter added impaired-driving enforcement, including saturation patrols, traffic stops, and public safety checkpoints.

A roadblock stop is not automatic proof of DUI. Officers must still follow constitutional and statutory rules, and the details of the encounter can affect both the criminal case and a separate driver’s license suspension. South Carolina recognizes DUI based on material and appreciable impairment from alcohol, drugs, or a combination of substances. State law also creates a separate offense for driving with an alcohol concentration of 0.08 percent or more.

The safest choice is to arrange a sober ride before drinking begins. After an arrest, act quickly because video preservation, testing records, and a 30-day license-hearing deadline may become critical.

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Why Late Summer Brings More DUI Enforcement

The South Carolina Department of Public Safety describes the period from Memorial Day through Labor Day as the “100 Deadly Days of Summer.” The 2026 enforcement schedule calls for stepped-up DUI enforcement during the Labor Day Sober or Slammer campaign from August 14 through September 7.

Added enforcement does not mean that every agency will use the same method or that a checkpoint will appear on a particular Greenville road. Enforcement may include:

Saturation patrols in selected areas
Marked and unmarked patrol vehicles
Traffic stops based on observed violations
Driver’s license and registration checkpoints
Sobriety checkpoints conducted under an approved plan
Speed, seat belt, and other traffic-safety enforcement

Do not rely on social media posts or rumors about checkpoint locations. A better plan is to avoid driving after drinking or using an impairing substance.

Before attending a late-summer event:

Choose a designated driver who will not drink.
Arrange a rideshare, taxi, or overnight stay before the event.
Review prescription and over-the-counter medication warnings.
Do not combine alcohol with medication or other substances.
Keep your driver’s license, registration, and insurance information current and accessible.
Do not assume coffee, food, or a brief wait has made driving safe.

How Saturation Patrols Differ From Roadblocks

A saturation patrol places additional officers in a selected area to watch for unsafe driving and traffic violations. Before stopping a specific vehicle, an officer generally needs a lawful basis, such as speeding, failing to maintain a lane, an equipment violation, or another observed offense.

A roadblock works differently. Officers may briefly stop vehicles under a neutral, predetermined plan even when they did not observe each driver commit a violation. Because a checkpoint is a seizure under the Fourth Amendment, the operation must comply with constitutional limits.

South Carolina courts may examine:

The checkpoint’s primary purpose
Whether the purpose relates to roadway safety rather than ordinary crime control
Who selected the location and approved the operation
How vehicles were selected for stopping
How long drivers were detained
Whether officers followed written procedures
Whether signs, lighting, and safety measures were used
Whether the State can show that the checkpoint reasonably served its stated purpose

A checkpoint with ordinary crime control as its primary purpose can violate the Fourth Amendment. A defense lawyer may request the operational plan, supervisor instructions, checkpoint logs, statistics, video, and other records to determine whether the operation met constitutional requirements.

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"John Bateman is my absolute go to peer in the legal field when it comes to questions about DUI. . . . He has an innate ability to convey to clients what really matters in their cases. As a fellow attorney, I highly recommend John to anyone in the SC or NC areas who are looking for... legal representation when facing a DUI charge."

M. Brock

"An excellent DUI attorney. He has received the same field sobriety test training as all police officers in the State"

"John is an excellent DUI attorney. He has received the same field sobriety test training as all police officers in the State, and also the same training as the people who are the instructors of the police officer training courses on field sobriety tests. He is very passionate about DUI's and I recommend him often to people who are facing serious charges in the upstate area."

P. Hammond

"He cares for each of his clients and works extremely hard to achieve results."

"Very knowledgeable and thorough in his preparation and representation of his clients. He cares for each of his clients and works extremely hard to achieve results. I highly recommend this lawyer."

C. Grubbs

What Officers May Observe at a Greenville Roadblock

The first contact at a checkpoint may be brief. An officer may request your driver’s license, registration, and proof of insurance. During that exchange, the officer may report observations such as:

An odor of alcohol
Red or watery eyes
Slurred or unusual speech
Confusion or delayed responses
Difficulty locating documents
Open containers
An admission of drinking
Visible medication or suspected drugs

These observations do not prove impairment by themselves. Fatigue, allergies, anxiety, heat, medical conditions, contact lenses, and the stress of police contact may affect how you look or respond. An officer may still use the observations, together with other facts, to extend the encounter and begin a DUI investigation.

If you are directed to a secondary area, the officer may ask more questions, request roadside field sobriety exercises, and decide whether probable cause exists for an arrest. The conditions matter. Lighting, traffic noise, road surface, footwear, weather, physical limitations, and the clarity of the instructions can affect what happens during roadside exercises.

Your Rights During a DUI Checkpoint

Remain calm, keep your hands visible, and avoid sudden movements. Provide documents that the officer lawfully requests. Do not resist, flee, or interfere with the investigation.

You may politely limit unnecessary conversation. You can say, “I prefer not to answer questions.” You do not have to volunteer information about where you were, what you consumed, or how much you consumed.

You do not have to consent to a vehicle search. Officers may still conduct a search without consent when another legal basis exists, such as probable cause, a valid warrant, or a recognized exception to the warrant requirement.

South Carolina law states that refusing a field sobriety test does not constitute disobeying a police command. A refusal does not prevent an arrest. An officer may rely on driving behavior, physical observations, statements, video, and other evidence when deciding whether probable cause exists.

Roadside field sobriety exercises are different from chemical testing requested after an arrest. The consequences and legal rules are not the same.

More information about field sobriety testing is available at:

https://duigreenville.com/dui-field-sobriety-tests-in-greenville/

What South Carolina Implied Consent Means After Arrest

After a lawful DUI arrest, South Carolina’s implied consent law applies to chemical testing of breath, blood, or urine. Before testing, the officer must provide written and verbal warnings required by statute.

Those warnings include the following points:

You may refuse the requested test or samples.
Refusal can cause a driver’s license suspension.
A result of 0.15 percent or higher can cause a separate suspension.
You may request an independent test at your own expense.
You have 30 days from the notice of suspension to request a contested case hearing.
Ignition interlock options may be available under current law.

For a person without a qualifying prior conviction or suspension during the preceding 10 years, the statute provides a six-month suspension for refusing the test and a one-month suspension for a result of 0.15 percent or higher. Different periods may apply when qualifying prior events exist.

A criminal DUI charge and an administrative license suspension are separate matters.

Your criminal court date does not replace the 30-day deadline for requesting a contested case hearing.

A later reduction or dismissal of the criminal charge does not automatically resolve every driver’s license issue. Review the suspension notice and testing paperwork promptly.

Learn more about implied consent and license consequences at:

https://duigreenville.com/implied-consent-greenville-sc/

Why Police Video Matters in a DUI Case

South Carolina law generally requires video recording of a person’s conduct at the incident site and breath-test site when the applicable equipment is available and the statute applies.

The incident-site recording should include:

The roadside encounter
Field sobriety exercises that were administered
The arrest
The required Miranda advisement

The breath-test-site recording should include:

The entire breath-testing procedure
The person taking or refusing the test
The breath-test operator’s actions
The required 20-minute pretest waiting period, subject to the statute’s exceptions

Roadblocks can create special recording issues because blue lights may not activate the camera in the same manner as an ordinary traffic stop. The statute states that recording must begin as soon as practicable when an arrest occurs under those circumstances.

Missing or incomplete video does not automatically require dismissal. It may still affect how the court evaluates the officer’s report, the arrest, roadside exercises, the testing procedure, and any explanation for the missing footage.

Read more about South Carolina DUI video requirements at:

https://duigreenville.com/dui-videotaping-laws-south-carolina/

What to Do After a Late-Summer DUI Arrest

The hours and days after an arrest can feel uncertain. Focus on preserving information and meeting deadlines.

Save the ticket, bond paperwork, suspension notice, test documents, and court information.
Photograph or scan every page before storing the originals.
Write down the checkpoint location, route, time, weather, traffic conditions, and lighting.
Record what the officer said, what questions were asked, and how you responded.
List every roadside exercise or chemical test that was requested.
Note any medical condition, injury, prescription, footwear issue, or environmental factor that may have affected testing.
Preserve receipts, photographs, text messages, location history, and rideshare records.
Save the names and contact information of passengers or other witnesses.
Avoid posting the facts of the case on social media.
Do not miss a court date.
Do not assume that the criminal court date controls the separate license deadline.
Ask an attorney to preserve video, checkpoint plans, logs, dispatch records, and testing records.

More guidance is available at:

https://duigreenville.com/after-dui-arrest-in-greenville-sc/

How a DUI Defense Lawyer Reviews a Roadblock Case

A roadblock case involves more than a breath result or an officer’s conclusion. A defense review may address whether:

The checkpoint had a lawful roadway-safety purpose.
A supervisor approved a neutral operational plan.
Officers stopped vehicles according to that plan.
The detention lasted longer than necessary.
The officer had a lawful basis to extend the stop.
Roadside exercises were administered and interpreted fairly.
Video supports or conflicts with the written report.
Breath, blood, or urine testing complied with statutory requirements.
The suspension notice and implied consent warnings were proper.
The 30-day hearing deadline remains open.
Evidence should be challenged, limited, or excluded.

The Bateman Law Firm focuses on DUI defense across Greenville and Upstate South Carolina. Attorney John C. Bateman is a former Army JAG prosecutor and an NHTSA-certified standardized field sobriety test instructor. His training helps the firm evaluate police decision-making, roadside exercises, video evidence, breath-testing procedures, and driver’s license issues without promising a particular result.

Frequently Asked Questions About Greenville DUI Roadblocks

Can Officers Stop Every Vehicle at a DUI Roadblock?

Officers may stop vehicles under a neutral checkpoint plan that limits individual discretion. The operation must have a lawful primary purpose and must satisfy constitutional standards. Whether officers followed the approved plan can become an issue in the case.

Do I Have to Answer Questions About Drinking?

You must provide documents that the officer lawfully requests. You may politely decline to answer questions that could lead to an admission. Remaining silent does not prevent an officer from continuing the investigation or making an arrest based on other evidence.

Can I Refuse Roadside Field Sobriety Exercises?

South Carolina law states that refusal of a field sobriety test does not constitute disobeying a police command. Refusal does not guarantee that you will avoid arrest. Chemical testing after arrest is governed by separate implied consent rules and may involve driver’s license consequences.

How Long Do I Have to Challenge an Implied Consent Suspension?

You generally have 30 days from the issuance of the notice of suspension to request a contested case hearing. Missing that deadline can waive the hearing right, so prompt review is necessary.

Speak With a Greenville DUI Defense Lawyer

If you were arrested during a late-summer patrol or roadblock, prompt legal advice can help you understand the criminal charge, the separate license process, and the evidence that should be preserved.

The Bateman Law Firm represents people facing DUI allegations in Greenville, Clemson, Spartanburg, and nearby areas across Upstate South Carolina. The firm offers a free consultation and 24/7 assistance.

Call (864) 406-3004 or visit:

https://duigreenville.com/greenville-dui-defense-attorney/

https://duigreenville.com/contact/

Official Sources

South Carolina Department of Public Safety, 2026 Law Enforcement Challenge: https://scdps.sc.gov/sites/scdps/files/Documents/sclen/2026%20Law%20Enforcement%20Challenge.docx
South Carolina Code of Laws, Title 56, Chapter 5: https://www.scstatehouse.gov/code/t56c005.php
South Carolina Supreme Court checkpoint opinion: https://www.sccourts.org/media/opinions/HTMLFiles/SC/26510.htm

This article is for informational purposes only and is not legal advice. Laws, procedures, and individual circumstances can change the analysis. Consult an attorney about your specific situation.

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DUI

Late Summer DUI Patrols and Roadblocks in Greenville, SC