Criminal Defense Cavanagh & Associates Successfully Represents You

St. Louis Criminal Defense Lawyer

Experienced Criminal Defense in St. Louis, MO

Facing criminal charges can be a frightening, overwhelming, and confusing experience. You may be unsure what to do or say, but every step you take from this point forward can directly impact your future. In these situations, exercise your right to legal counsel. Call an experienced criminal defense attorney in St. Louis, MO, to protect your constitutional legal rights.

When your freedom is on the line, trust your criminal case to attorney Jack Cavanagh. He is a former prosecutor and seasoned trial lawyer with over 50 years of legal experience. At Cavanagh & Associates, he provides strategic, skilled defense for individuals facing criminal charges throughout St. Louis.

Call (314) 309-2799 to schedule a confidential consultation with an experienced criminal defense attorney in St. Louis.

Understanding the Criminal Defense Process in Missouri

For anyone accused of a crime in Missouri, understanding local legal procedures and potential penalties is crucial. St. Louis is home to both city and county courts, each managing a range of criminal matters—including preliminary hearings, arraignments, and trials.

Procedures and judges may differ between jurisdictions, and knowing which court is assigned to your case is essential for timely filing and preparation. 

Our firm is experienced with the St. Louis Circuit Court and the county system, which allows us to address local rules and expectations that could impact your defense. Whether your case is resolved through negotiation or goes to trial, having a criminal defense attorney in St. Louis who understands the local court system can help protect your rights at every stage.

Comprehensive Criminal Defense Services in St. Louis, MO

We handle a wide variety of criminal cases in St. Louis and the surrounding areas, including:

  • DUI (driving under the influence) and DWI incidents: Representation for alleged offenses related to alcohol or drug impairment while operating a vehicle.
  • Theft crimes: Assistance for charges such as burglary, shoplifting, felony theft, and robbery.
  • Sex crimes: Defense for accusations involving child pornography, rape, or alleged sex offender registration violations.
  • Juvenile court matters: Legal counsel for minors facing charges related to theft, property crimes, or gang activity.
  • Drug crimes: Support for charges involving possession, possession with intent to sell, trafficking, or alleged manufacturing of controlled substances.
  • Domestic Violence: Guidance from a team experienced in family law and criminal defense legal process.
  • Probation Revocation: We work to avoid the revocation through experienced criminal defense counsel.

The St. Louis Metropolitan Police Department and local law enforcement often coordinate with the prosecutor’s office to prepare cases for formal charging, which highlights the need for an experienced defense attorney in St. Louis who can respond quickly and begin organizing your defense from the moment you are contacted by authorities. 

Our team works directly with clients to review police reports, gather evidence, and address any issues concerning how evidence was obtained under Missouri law to build the strongest possible defense to your case.

What a Criminal Defense Lawyer in St. Louis Can Do for You

A criminal defense attorney plays a crucial role in representing individuals accused of committing crimes. Their primary goal is to protect your rights, provide you with legal guidance, and secure the best possible outcome for your case. 

Here's what a criminal defense attorney can do for you:

  • Legal Advice and Guidance: Provide you with legal advice tailored to your specific case, explaining the charges against you, potential consequences, and available defenses.
  • Investigation: Conduct a thorough investigation into the facts surrounding your case. This may involve gathering evidence, interviewing witnesses, and analyzing police reports.
  • Building a Strong Defense: Develop a defense strategy based on the evidence collected, aiming to challenge the prosecution's case. This could involve questioning the credibility of witnesses, challenging the admissibility of evidence, or presenting an alternative narrative.
  • Legal Motions: File motions to suppress evidence that was obtained unlawfully, request dismissals based on legal grounds, or seek other pre-trial rulings that may benefit your case.
  • Negotiating Plea Deals: Engage in plea bargain negotiations with the prosecution to potentially reduce charges or secure more favorable sentencing terms. This is often done with consideration of the strength of the evidence and potential risks associated with going to trial.
  • Trial Representation: Represent you in court if your case goes to trial. This involves presenting evidence, cross-examining witnesses, and making legal arguments to support your defense.
  • Understanding Legal Procedures: Guide you through the legal process, ensuring that you understand your rights, the charges against you, and the potential consequences you may face.
  • Sentencing Advocacy: Present mitigating factors during the sentencing phase if you are convicted, aiming to reduce the severity of the punishment.
  • Appeals: If you are convicted and wish to appeal, your criminal defense attorney can continue to represent you during the appellate process, seeking to overturn or modify the conviction.
  • Handle Legal Procedures and Paperwork: Take care of legal paperwork, filings, and other procedural requirements associated with your case, saving you time and effort.

It's important to consult with an experienced criminal defense attorney in St. Louis as early as possible if you are facing criminal charges. The attorney's experience, knowledge of the law, and ability to navigate the legal system can significantly impact the outcome of your case.

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What to Expect After a Criminal Arrest in St. Louis

Understanding what happens after an arrest in St. Louis helps you stay informed and avoid early missteps. Whether you’re taken to the St. Louis City Justice Center or a county facility, the process begins immediately. Early support from a trusted St. Louis criminal defense attorney can influence bail, charges, and the direction of your case.

  • Booking & Processing: Officers verify your identity, take fingerprints, and document the alleged offense. This occurs shortly after arrest at the St. Louis City Justice Center or a local county detention facility.
  • Initial Court Appearance (Arraignment): Within 24–48 hours, a judge in the 22nd Judicial Circuit explains your rights, reads the charges, and sets bail. Strong representation can help secure better bail terms or release conditions.
  • Investigation & Discovery: Both sides review police reports, witness statements, and any digital or physical evidence. Your attorney analyzes the details under Missouri law to identify weaknesses or constitutional issues.
  • Plea Negotiations or Motions: Attorneys may discuss case resolutions or file motions to suppress evidence obtained through improper searches, questioning, or procedure. These steps can significantly impact the outcome.
  • Trial Preparation: If the case proceeds, both parties organize evidence, prepare witnesses, and evaluate strategy for trial. A defense lawyer familiar with St. Louis courts helps build a clear, targeted defense approach.

Having an experienced criminal defense lawyer whom St. Louis clients rely on provides a significant advantage, as every stage after arrest can influence the resolution of your case.

Do Not Wait to Involve a St. Louis Criminal Defense Lawyer

If you were arrested or accused of a crime but formal charges have not yet been filed, the worst mistake you can make is waiting to contact a criminal defense attorney. In every criminal case, time matters—and the earlier you act, the more options you have to protect your future. Securing representation from an experienced criminal defense lawyer in St. Louis at the earliest stage can often mean the difference between walking free and facing jail time.

Contact Our Criminal Defense Lawyer in St. Louis

If you’re facing criminal charges in St. Louis, you need an experienced legal advocate who knows how to protect your future. Attorney Jack Cavanagh is a former prosecutor with more than 50 years of law experience. He understands how the State builds its case—and uses that insight to challenge the evidence, protect your rights, and pursue the best outcome possible.

At Cavanagh & Associates, we provide strategic, results-driven defense for clients facing misdemeanors and serious felony charges throughout St. Louis and the surrounding courts. You don’t have to face the criminal justice system alone.

Protect your future with a St. Louis criminal defense lawyer who knows both sides of the courtroom. Call (314) 309-2799 or contact Cavanagh & Associates now.

Frequently Asked Questions

How much does a criminal defense lawyer typically cost in St. Louis?

Fees vary depending on the seriousness of the charge, the complexity of the case, and the attorney’s experience. Some St. Louis criminal defense lawyers charge flat fees for misdemeanors and hourly or hybrid fees for felonies. Scheduling a consultation with us can bring you clarity in this matter.

Do I need a lawyer if I’m innocent?

Yes. Even innocent people can be convicted without proper legal representation. A criminal defense attorney ensures your rights are protected, identifies weaknesses in the prosecution’s case, and prevents you from making statements that could be misinterpreted.

What should I do if the police want to question me?

You should remain polite but exercise your right to remain silent. Ask clearly for a criminal defense lawyer before answering any questions. Speaking to police without legal guidance can harm your case.

Can a St. Louis Defense lawyer get my charges reduced or dismissed?

In some cases, yes. Your lawyer may negotiate plea deals, challenge evidence, or show that your rights were violated. While no attorney can promise an outcome, an experienced defense lawyer often improves your chances significantly.

What’s the difference between a public defender and a private criminal defense lawyer?

Public defenders are appointed to individuals who cannot afford an attorney and often handle heavy caseloads. Private criminal defense lawyers typically offer more personalized attention, greater availability, and additional resources for building a strong defense.

Will a criminal charge stay on my record forever?

Some charges can be expunged in Missouri, depending on the offense and your criminal history. A criminal defense lawyer in St. Louis can explain whether your case qualifies for expungement and guide you through the process.

    "Two things define you. Your patience when you have nothing, and your attitude when you have everything."
    My experience with Mr. Cavanagh was very pleasant. I was kept informed about what was going on with my case. Phone calls were returned promptly and everything was explained to me. Knowledgeable, personable and fair - can't ask for much more than that. He was on my side. One more thing.... he's not a pushover when it comes to the opponent! Love it!
    - Terri Buckner
    "The best there is in the Biz"
    Jack has been a lawyer for a long time. He values his clients and sees them as people with individual circumstances, and not just dollar bills like other attorneys. Anyone that knows anything about the law knows it’s about making and keeping good rapport with all parties involved. And for a defense attorney, being familiar with the judge to the prosecutor and being on a friendly basis with them is exceptionally important. And Jack knows everyone! He should as he’s been doing this for probably over 40 years. He’s not only a great attorney but I consider him a friend. Don’t make the mistake of choosing an unknown rookie attorney who may be a couple bucks cheaper. Choose Jack!
    - Paige
    "I highly recommend him"
    Jack took over my divorce case and made a seemingly endless divorce process (nearly 4 years with mediation, continuances and a former atty.) come to a quick and agreeable settlement. Jack is an effective and seasoned attorney that made easy work of the negotiations. He is respectful and concerned for his clients. His associates were friendly and helpful, ensuring that all paperwork was completed in a timely and accurate fashion. I highly recommend him if you are going through a difficult divorce.
    - Carol
    "Great Team! Highly Recommended."
    I worked with Jack and Eka recently and must say they exceeded my expectations. Great communication and compassion for what you’re dealing with. I wouldn’t hesitate to go back to them for any of my legal matters.
    - Donald Salisbury
    "I was beyond satisfy"
    Mr. Jack Cavanagh was my attorney getting me removed from an child birth certificate that wasn’t my child. He made the process very easy and timely manner the communication was very good and I was beyond satisfy with the outcome and service Thank you Mr.Jack and Ms.English
    - Demetric L.
    "We won a battle like David against Goliath"
    Jack is great lawyer with lots of experience. I’m glad we I hired him to represent me. We won a battle like David against Goliath.
    - Rolles G.
    "I've worked with Jack on two separate occasions and both times I felt that he not only had my best interest in mind but was going to bat on my behalf. "
    I would highly recommend setting up a consultation with Jack regarding your legal matters as he certainly goes above and beyond for his clients.
    - Matt
    "I would recommend Mr. Cavanagh as well as use him again in the future."
    Mr. Cavanagh was very patient in dealing with all of the difficulties of my case. He was pleasant to work with to get the child support and custody worked out in a way that was fair. He showed real concern for the welfare of my son. He was professional in guiding me with regards to counseling and getting my sons voice heard throughout the case as well. Lastly he was thorough in that he went through the original divorce decree and made sure I received what I should have gotten during the divorce. I would recommend Mr. Cavanagh as well as use him again in the future.
    - Former Client

What Our Work Means

Our Values
  • We have a genuine desire to see our clients succeed.
  • Attorney Cavanagh handles our clients' legal matters personally.
  • We achieve positive case outcomes through thorough preparation.
  • Attorney Cavanagh is a former prosecutor turned legal advocate.
  • We offer confidential consultations to every client.
  • Attorney Cavanagh has over 50 years of legal experience.

Contact Us Today!

Free Consultations Available

Whether you have questions or you’re ready to get started, our legal team is ready to help. Complete our form below or call us at (314) 309-2799.

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