
Chesterfield Federal Criminal Defense Attorneys
Let Our Firm Protect You Against Federal Charges
Facing federal criminal charges is a serious, high-stakes situation that can impact every area of your life. At The Hammer Law Firm, LLC, we understand how daunting these charges can be and are committed to defending your rights and building a strong case in your defense. As an experienced Chesterfield federal criminal defense lawyer, we provide strategic representation for individuals charged with federal crimes. Our mission is to help you navigate the complexities of federal law and pursue the best possible outcome in your case.
Contact our Chesterfield federal crime defense attorneys at (314) 334-3807 today and set a time for a free consultation with Hammer. We can explain the process to you so you can get the best possible outcome.
What is a Federal Crime?
A federal crime is an offense that violates United States federal law rather than state law. These cases are prosecuted in federal court by U.S. Attorneys and investigated by federal agencies such as the FBI, DEA, IRS, ATF, or Homeland Security.
- Crimes typically become federal when:
- They occur across state or national borders
- They involve federal government property or personnel
- They violate specific federal statutes
- They involve crimes like terrorism, organized crime, or large-scale fraud
Federal cases are often more complex than state cases, with longer investigations, more resources dedicated to prosecution, and stricter sentencing guidelines.
Common Types of Federal Crimes
Federal crimes encompass a broad range of illegal activities, many of which have serious consequences for those convicted. At The Hammer Law Firm, LLC, we have experience defending clients against various types of federal charges, including:
- Drug Trafficking and Distribution: Drug trafficking, especially involving controlled substances like cocaine, heroin, methamphetamine, or fentanyl, often results in federal charges, especially when distribution crosses state lines or involves large quantities. Federal drug charges are typically prosecuted by the DEA and carry harsh sentences, often with mandatory minimum penalties.
- White Collar Crimes: White collar crimes are non-violent financial offenses that include fraud, embezzlement, money laundering, and insider trading. The federal government takes a particularly aggressive stance on white collar crimes, with agencies like the FBI and SEC often conducting in-depth investigations. Convictions can lead to lengthy prison terms, heavy fines, and restitution orders.
- Weapons Violations: Federal gun laws regulate the sale, transport, and possession of firearms. Violations of these laws—such as trafficking firearms across state lines, illegal possession by prohibited individuals, or using firearms in connection with a drug crime—are prosecuted as federal offenses. The ATF is typically involved in these cases, and penalties are severe.
- Cybercrimes: Cybercrimes include hacking, identity theft, online fraud, and distribution of illegal content over the internet. Federal cybercrime cases are often complex and involve agencies like the FBI and Secret Service. With technology continuously evolving, the federal government has made cybercrime enforcement a priority, leading to aggressive prosecutions.
- Immigration Violations: Offenses such as human trafficking, illegal re-entry, and document fraud fall under federal immigration laws. Immigration violations are often handled by Immigration and Customs Enforcement (ICE) and can result in deportation, imprisonment, or other serious consequences.
- Federal Sex Crimes: Federal sex crimes can include offenses like human trafficking, possession or distribution of child pornography, and certain forms of online solicitation. Convictions for these crimes can lead to lengthy prison sentences, sex offender registration, and other long-lasting penalties.
Common Penalties
Federal penalties vary depending on the nature of the offense, your criminal history, and other factors, but they are generally more severe than state-level penalties.
Potential consequences include:
- Lengthy Federal Prison Sentences – Many offenses carry mandatory minimums, meaning the judge must impose at least a certain sentence.
- Substantial Fines – Ranging from thousands to millions of dollars.
- Supervised Release – Similar to probation, but with stricter federal monitoring requirements.
- Asset Forfeiture – Seizure of property or money connected to alleged criminal activity.
- Loss of Professional Licenses – For those in regulated industries.
- Permanent Criminal Record – Which can impact future employment, housing, and civil rights.
Under the Federal Sentencing Guidelines, judges use a point-based system to determine sentences, but prosecutors often push for the highest possible penalties.
What to Expect During a Federal Investigation
Federal criminal cases often begin with an investigation rather than an immediate arrest. Federal agencies like the FBI or DEA conduct thorough investigations, gathering extensive evidence before making an arrest or filing charges. The investigation process can involve surveillance, wiretapping, subpoenas, and cooperation with other federal agencies.
Here’s what usually happens:
- Initial Investigation – Federal agencies gather evidence, often over months or years. This may involve surveillance, undercover operations, or search warrants.
- Grand Jury Proceedings – Prosecutors may present evidence to a grand jury to seek an indictment.
- Target Letters – You may receive a letter informing you that you are a target of a federal investigation.
- Indictment & Arrest – If the grand jury issues an indictment, you may be arrested or summoned to appear in court.
- Arraignment – You are formally charged and enter a plea.
- Pretrial Proceedings – Motions, discovery, plea negotiations, and hearings take place.
- Trial or Plea Agreement – Your case may go to trial or resolve through a negotiated plea.
If you suspect you are under federal investigation, it’s critical to consult a Chesterfield federal criminal defense lawyer immediately. At The Hammer Law Firm, LLC, we can advise you on how to protect your rights, avoid self-incrimination, and prepare for potential charges.
FAQs About Federal Charges
How is a federal crime different from a state crime?
Federal crimes violate U.S. federal law, are prosecuted in federal court, and often carry harsher penalties than state crimes. They may involve interstate activity, federal property, or specific federal statutes.
What should I do if I’m contacted by a federal agent?
Do not answer questions without your lawyer present. Politely decline to speak until you have consulted with our Chesterfield federal criminal defense attorney.
Can I be charged in both state and federal court for the same crime?
Yes. Under the “dual sovereignty” doctrine, both state and federal authorities can prosecute the same conduct if it violates both state and federal laws.
Are federal sentences more severe than state sentences?
Generally, yes. Federal sentencing guidelines often recommend longer prison terms, and many crimes have mandatory minimum sentences.
When should I hire a lawyer for a federal investigation?
Immediately. The earlier you involve an experienced federal defense attorney, the more options you may have to protect your rights and potentially avoid charges.
Protect Your Future Today
Federal criminal cases are complex, high-stakes matters that require an experienced and aggressive defense. Our team has the skills, resources, and determination to challenge the government’s case and fight for the best possible outcome.
Call (314) 334-3807 or contact us online today to schedule a free case review.

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


WHY TRUST OUR ST. LOUIS CRIMINAL DEFENSE LAW FIRM?
What Makes Us Different
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We work directly with you to determine the best possible outcome based on your goals and needs. We then create personalized legal strategies to set your case up for success.
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Our attorneys pride ourselves on always being available to address any questions you have regarding your case. With our team, you aren't just a number.
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As former prosecutors who know how the 'other side' operates, we have a unique insight that allows us to set our client's cases up for success.
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The Hammer Law Firm, LLC team has more than 60 years of combined criminal law experience. We have the tools, knowledge, and resources to effectively advocate on your behalf.

When you want personal support and proven representation, you need to bring The Hammer Law Firm, LLC to the fight.