We Fight for You

Experienced DWI Lawyers with a Track Record of Success

The Lampin Law Firm is located in St. Charles County, MO. Our Attorneys represent clients across the entire State of Missouri as well as many areas in Southern Illinois.

A set of keys on a table next to alcoholic beverages. The concept of a DUI. Law hammer, alcohol and car keys on wooden table, dark background

A DWI is a serious charge that carries with it serious consequences including the potential loss of your driver’s license and possibly even jail time.

A set of car keys and hand cuffs next to a glass of alcohol The attorneys at the Lampin Law firm aggressively fight DWI charges on behalf of our clients and use knowledge and experience to get you the results that you need. Our experienced lawyers have represented THOUSANDS of people facing DWI charges. Our team of DWI attorneys includes several former prosecuting attorneys who understand what the State is going to do and who knows how to aggressively fight for you.

Time is limited in all DWI Cases

In the state of Missouri, you may have as few as 14 days from the time of your arrest for Driving While Intoxicated to protect your legal rights! It is important to speak to an attorney that will help you understand your rights and explain to you how to protect them.

At the Lampin Law Firm, we have the experience and training to make sure your rights are protected and provide you with the best chances of success. Contact us today to discuss the details of your case and to arrange a free consultation.

Aggressive DWI Lawyers in St. Charles, MO

Our defense attorneys aggressively approach every alcohol-related driving offense that our clients are charged with regardless of how overwhelming the evidence seems to be. Our team uses their working knowledge of DUI laws and procedures to build stronger cases for our clients. We know how much is on the line and we will never accept the minimum when it comes to delivering results. DWI Expungement is our top priority if it is possible. Our clients expect the best DWI defense possible and we strive to meet their expectations in every way.

Why Choose Us?


We give our clients an honest assessment of their case. We work together with you to identify the best defense based on the particular facts of your case.


We have helped thousands of clients throughout the state of Missouri fight their DWI charges.


We are oftentimes able to challenge the accuracy of the procedures and tests used by the police during their DWI investigation.

We understand what is at stake for you, and will take immediate action to protect your rights and your future.


A Plus Rating from Better Business Bureau
The National Top 100 Trial Lawyers. By invitation only, those included in the Top 100 trial Lawyers by The National Trial Lawyers demonstrate superior legal advocacy skills, have a stellar reputation and have a positive impact on their community.
The National Trial Lawyers: Top 40 under 40. omposed of the top trial lawyers from each state or region who are under the age of 40. Membership is by invitation only and is extended exclusively to those trial lawyers practicing civil plaintiff and/or criminal defense law.
Missouri Association of Criminal Defense Lawyers
National Association of Criminal Defense Lawyers
Top 10 Lawyers in Asbestos Mesothelioma
National Association of Distinguished Counsel
American Association for Justice. The mission of the American Association for Justice is to promote a fair and effective justice system—and to support the work of attorneys in their efforts to ensure that any person who is injured by the misconduct or negligence of others can obtain justice in America’s courtrooms, even when taking on the most powerful interests.
Americas Top 100 Attorneys Lifetime Achievement
American Institute of DUI/DWI Attorneys

Our results speak for themselves

Our lawyers have represented thousands of people who were facing criminal charges for DWI and we have a track record of success that speaks for itself. The members of our legal team have helped people charged with all levels of DWI charges from misdemeanors, to serious felonies, as well as complicated CDL DWI cases and have developed a reputation for success in courts throughout the State of Missouri.

When a client comes to us, we find that they oftentimes want to know about our:

  • Experience – Our lawyers have over 150 years of combined legal experience. Two of our lawyers are former assistant prosecuting attorneys who are in the unique position of having once prosecuted people charged with Driving While Intoxicated. ALL of the lawyers on our DWI team have handled hundreds of criminal cases and have developed a great deal of knowledge in this complex area of law.
  • Focus on Results – We approach every case as if it were our own. You will never be just another name on a file. We work with you to identify your goals and will work tirelessly to help you achieve them throughout the court process.
  • Communication with our clients – When you hire our law firm, you will be involved in every step of the process. At some law firms, you will be stuck dealing with a paralegal. At The Lampin Law Firm, we believe that you should always be able to speak to an attorney. If we are not available we strive to return your phone call the same day.
  • Availability to our clients – Sometimes you will need to speak with your attorney outside of normal business hours. Our clients have their attorney’s cell phone numbers and are able to reach them at any time of the day.

Our DUI Lawyers have over 100 years of combined legal experience.

What to do if you’ve been pulled over and charged with a DWI/DUI in St. Charles, MO:

A police car in the rear view mirror of a vehicle being pulled over

In almost every DWI case, the arresting officer attempts to obtain test results that measure the driver’s blood alcohol concentration (BAC). Although an officer has discretion to ask for a blood or urine test, the most common BAC test requested by law enforcement is a breath test. If the person suspected of DWI refuses to provide a sample, the police officer has the legal authority to pursue a warrant for a blood test. This does not necessarily mean that the police officer will go through the process of obtaining a search warrant, but it is important to understand that he/she may do so. In the event that the officer obtains a warrant for your blood after you initially refused to take the test you may find yourself in a situation where you are facing two separate license suspensions (one for the initial refusal and a second for having a BAC over .08).

Many DWI cases that our firm encounters involve blood or breath test results.

In cases where a blood or breath sample was obtained, our DWI lawyers use their knowledge and years of experience to challenge the results of these tests. We know what to look for in challenging the validity of these BAC tests including:

  1. if the tests were performed properly. The officer performing the chemical test must adhere to a set of strict procedures when administering the breath test. The same is true if a blood or urine sample was obtained.
  2. if the person doing the tests had the proper permits as required by the Missouri Department of Health and Senior Services. Not every police officer has the proper permit required to administer a blood alcohol test.
  3. if the breath test machine was properly calibrated. Just because the breathalyzer says that you are over the legal limit does not mean that the result is accurate.
  4. if the proper procedures were followed. Our lawyers always attempt to obtain a copy of the video from your arrest as well as the administration of the breath test. This enables us to verify whether the proper procedures were followed.

Our experienced attorneys know what to look for and have a track record of successfully challenging chemical test results.

Our strategic approach for handling your Driving While Intoxicated Charge

When you come to the lawyers at The Lampin Law Firm, we take a detail-oriented approach in investigating your DWI case. This starts with examining the initial stop that led to your arrest. A police officer must have probable cause to pull you over and investigate you for driving while intoxicated. The officer cannot make a stop based solely on a “hunch.” Importantly, field sobriety tests (SFSTs) and chemical testing (i.e. blood and breath tests) are almost always fallible, so we are oftentimes able to challenge the accuracy of the procedures and tests used by the police in their investigation.

Should You Blow When Asked To Take a Breathalyzer Test in Missouri?

A police officer holding up a breathalyzer

One of the most common questions that we are asked is whether a person should agree to take a breathalyzer or refuse the test even though they have been told that they will lose their driver’s license for a year. There really is no easy answer to the question, unfortunately. There are simply too many factors involved that make it possible to offer a standard yes or no answer. If you are reading this and you already had to make a decision about whether or not to consent to a test of your BAC, there is no going back in time. However, knowing your rights and having lawyers who will fight for them is critical.

You Have The Right to Refuse Chemical Breath & Blood Tests

As a Missouri driver, you have the right to refuse a chemical BAC test. However, under our State’s Implied Consent Law, you may be punished for refusing a blood or breath test by having your license revoked. In fact, it is a requirement that you be told of the consequences of refusing to submit to the BAC test. By refusing the test, the officer will typically seize your driver’s license and issue you a temporary permit. At this point, you have as few as 15 days to protect your rights and appeal the suspension. If you do not request a hearing in this time, your license could be automatically suspended for an entire year.

First-time DWI Charges

If you’ve been arrested, the attorneys at The Lampin Law Firm can help. Our team is comprised of experienced criminal defense lawyers who understand the criminal courts and the administrative driver’s license review process.

We will put our extensive experience to work in defending your case, your constitutional rights and protecting your driver’s license.

In the state of Missouri, a first DWI offense is usually considered a Class B misdemeanor. However, charges may be elevated if certain aggravating circumstances were involved such as an accident involving injuries.

Typically, the penalties for a first offense include possible license suspensions, points on your driving record, fines, and potentially even jail time.

Legal Outcomes When Challenging a First Time DWI Charge

There are several ways that an experienced attorney can help you if you are confronted with a first time DWI. After your arrest, you may be asked to submit to a breath or blood test, and your results will influence whether you will face charges for driving while intoxicated. Even if you took this test and the results were well above the legal limit, there are ways that a DWI lawyer can challenge the manner in which the test was conducted and even the accuracy of the breath test machine itself. There are many ways to challenge BAC tests as well as the field sobriety tests.

2nd and 3rd Time DWI Charges

With a first-time DWI already on your record, the penalties for a subsequent DWI can be severe. If you’ve been arrested for a second or third DWI, you know that the consequences can be severe and long-lasting.

With so much on the line, your choice of legal representation has never been more important.

It is important to understand that even if it has been a long time since your first DWI charge, or if the case was disposed of with a Suspended Imposition of Sentence (SIS), your latest arrest will probably be charged as a more serious offense.

What are the penalties for a 2nd or 3rd DWI?

A second DWI may result in you being charged with a Class A misdemeanor which carries with it elevated criminal consequences. These penalties may include:

  1. a lengthy license suspension
  2. hefty fines
  3. additional points added to your driving record
  4. up to one year in jail

A third DWI conviction may be considered a felony DWI in the state of Missouri. As such, criminal penalties are severe and can include prison time and a 10-year license revocation. Each subsequent DWI conviction after the third offense will also be a felony that poses heightened penalties and increased terms of imprisonment.

Let The Lampin Law Firm Help You

Being arrested for a second or third DWI can leave you feeling stressed, worried, and uncertain. At The Lampin Law Firm, our St. Louis DWI defense attorneys are committed to giving you and your case the attention you need and deserve and, as our client, you can trust that we will use our combined 100 years of trial experience to investigate every piece of evidence presented against you.


It is possible to successfully challenge this evidence in your case and we can help. The Lampin Law Firm will aggressively attack the validity of these tests and fight to preserve your rights. Let our reputation for success work in your favor.

How to choose the right Missouri DWI lawyer:

It’s not easy to find a good DWI lawyer, and it can be especially difficult if you’re never been in trouble with the law before. But there are ways that you can get help finding an attorney who will provide the best defense for your situation. One way is to ask people whom you know, including family members and friends, about their experience with lawyers who handled their cases. Those opinions may come from personal experience or secondhand knowledge; either way they should be helpful as you begin your search for someone qualified to represent you against charges of driving while intoxicated (DWI).

With so many DWI attorneys out there, how do I know which one will really get me the results that I need? The truth of the matter is that no attorney should ever hold themselves out a being the best at any area of law. There are a lot of lawyers that will promise the world but when it comes time to deliver their clients are in for a rude awakening. At The Lampin Law Firm, we give our clients an honest assessment of their case. We always explain the potential risks and likely outcomes to ensure our clients understand all sides of an issue before moving forward with a decision. We never promise what we can’t deliver.

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