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St. Peters Criminal Defense Attorney

We Can Fight for Your Innocence

Being accused of a crime is a frightening experience, and the consequences of a conviction can be life-altering. If you have been charged with a crime, you need an experienced attorney by your side. At The Hammer Law Firm, LLC, we are dedicated to protecting our clients’ rights. Our goal is to get you the best possible results for your case. We have over 60 years of combined experience handling thousands of cases, and we are ready to work for you.

We know how stressful it is to be charged with a crime. Our job is to make your experience as comfortable as possible. We can listen to your story and help build a case for your innocence. Our team will not stop until your case is resolved.

You can schedule a free consultation with our St. Pete defense team by calling (314) 334-3807 today.

Types of Criminal Cases We Handle

  • Felonies
  • Car theft
  • Sex crimes
  • Theft crimes
  • Violent crimes
  • Federal crimes
  • Expungements
  • Disorderly conduct
  • White-collar crimes
  • Probation violations
  • And much more!

Drug Crime Defense

Drug charges carry serious consequences in Missouri, including lengthy prison sentences, heavy fines, and a permanent criminal record. As such, mounting an effective defense is crucial. 

We employ several strategies against these allegations, such as:

  • Challenging the legality of the search and seizure
  • Seeking to have the charges reduced or dismissed
  • Investigating potential instances of police misconduct

Additionally, our experienced attorneys may be able to negotiate a plea deal, resulting in reduced charges or minimal sentencing.

DUI Defense

If you are facing DUI charges in Missouri, you must remain aware of your legal rights and options. A DUI conviction can have serious consequences, including fines, jail time, and a criminal record. 

Our team can help you navigate the complex legal system and work to minimize the impact of these charges. 

We have a variety of defense strategies available, from challenging the validity of field sobriety tests to arguing for a reduction in charges. 

With our experience and knowledge, we can help you build a strong defense case and protect your rights. 

Juvenile Crimes Defense

Missouri recognizes the unique challenges facing juveniles who have been accused of a crime, and state laws provide specialized procedures to protect their rights. In these cases, you need an attorney who understands the intricacies of these laws and the whole juvenile justice system. 


Our team is familiar with the Missouri Family Court system and its range of sentencing options. We work hard to make sure a minor's future is not jeopardized. A strong, strategic defense can make a significant difference in a juvenile's life, and we are here to stand by you and your child’s side.

Misdemeanor Defense

Technically, misdemeanors are less serious than felonies, but they are still criminal offenses. They can lead to hefty fines, probation, community service, and even jail time. The most severe misdemeanors have penalties comparable to those of a felony.

Our attorneys have extensive knowledge of the state's criminal justice system. We are here to help protect your rights in a misdemeanor charge.

Felony Defense

Facing a felony charge in Missouri is a serious matter. These are the most serious crimes in the state, and penalties can go as far as life in prison. Furthermore, a convicted felon can lose their voting rights, have difficulty finding employment, or be rejected for housing.

The first step we take when mounting a felony defense is to understand the charges. From there, we begin gathering evidence that supports your case. Such evidence includes witnesses, documentation, physical evidence, and more.

Whether it's negotiating a plea bargain or taking your case to trial, our team will use the right resources to help prove you are not guilty.

You can meet with our St. Peters defense lawyers for free by contacting us online.

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Let Our Team Protect Your Rights

client testimonials

At The Hammer Law Firm, LLC, your satisfaction is our priority! See for yourself what our clients have to say about working with us.

    "Help and support through every step of the process..."

    Growing up often has painful mistakes, as my son can attest to! Mark and Nicole were both sympathetic and supportive as they ...

    - D.S.
    "Thank God for Mark Hammer"

    I cannot begin to explain in words how thankful I am that I contacted the Hammer Law Firm when I found myself facing criminal legal charges. I and my family will always be grateful beyond words for the role that Mark Hammer and The Hammer Law Firm played i

    - Former Client
    "Mark and Nicole are the best law firm partners ever."

    They are professional, courteous, and respectful to both the courts and their clients. This team of professionals is not in business just for the money, they are truly out to help their clients.

    - C.E.
    "He is a gentleman, exudes confidence and relieves stress with his truth."

    After a thorough review, Mark began to address every legal issue confronting our son, he had already done his homework, which began to bring sanity back into our family as we sat there.

    - Ken
    "Phenomenal Experience!!"

    We contacted Mark Hammer for help with our son. Mark was truly amazing! He worked hard for our son, was always a text or phone call away, and we could not have asked (or predicted) a better outcome! Absolutely in awe of him.

    - D.C.
    "You don't know how much of a blessing you are to us"

    Thank you so much, Nicole. I have faith and believe everything that's happening is for a reason. I know everything will be fine and I believe you are going to do everything you can and I'm very grateful for it.

    - C.G.
    "I could not have imagined getting through this difficult and uncertain time without the help of the Hammer Law Firm."

    I absolutely recommend Mark and Nicole to anyone who is needing more than a lawyer, but people who do genuinely care about you and who want to get the best possible outcome to get you through this difficult time.

    - E.M.
    "I have never met such dedicated attorneys that work so hard for the truth to come out at the trial."

    I just wanted to thank you again for your compassion, kindness, and support given to my family throughout this ordeal.  I thank the Hammer Law Firm for not only giving my son his life back but his family as well.

    - Former Client


Our attorneys are dedicated to working directly with all our clients.

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