Oklahoma City Federal Criminal Defense Lawyer

We Can Help You Navigate the Unknown.

At Cannon & Associates, we understand that you’re worried about your future, your family, and what comes next. We want to assure you that you have options, and we’re here to guide you through every step.

Court room.

A Clearer Path Forward:
Understanding the Federal Criminal Case Process

  1. Investigation: Federal agencies like the FBI or DEA might be building a case against you for months, gathering evidence.
  2. Indictment: If there’s enough evidence, a grand jury will decide to charge you formally.
  3. Arraignment: You’ll learn the charges against you, and a judge will decide on bail. This is when you should get a lawyer! An experienced attorney can advocate for your rights and fight for your best interests.
  4. Discovery: Both sides exchange evidence and prepare for trial.
  5. Plea Bargain:  Prosecutors might offer a deal to avoid a lengthy trial. Your lawyer can negotiate the best outcome for your case.
  6. Motions: Lawyers can argue to suppress evidence or dismiss charges.
  7. Trial:  A jury decides guilt or innocence based on presented evidence.
  8. Sentencing: If guilty, the judge determines your punishment based on the crime and your background. Your lawyer fights for a lighter sentence.
  9. Appeal:  If convicted, you can challenge the verdict or sentence (a long process).

You Don’t Have to Face the Federal Justice System Alone!

Get a strong and experienced legal partner by your side: Call Cannon & Associates at 405-591-3935

Cases We Cover

  • Violent crimes:
    bank robbery, crimes against children, gang violence, homicide, kidnapping, and threats to public officials
  • Sex crimes
  • Immigration crimes
  • Terrorism

How We Get The Best Possible Outcome For You

1. Book a free case strategy session

2. We’ll gather evidence and look into all relevant details of your case

3. We’ll advise you on your options and support you throughout the process to get you the best possible outcome

WHY CANNON & ASSOCIATES? 

GETTING THE BEST REPRESENTATION

“David McKenzie is the epitome of a great defense attorney. His fierce advocacy sets him apart, and each client can rest assured he/she is getting the best representation. He’s tried cases in state and federal court and is one of the best litigators I have seen. I would recommend his services to anyone facing a criminal charge.”

– Evan

What to Expect from
your Case Strategy Session

  • Terms You’ll Understand: We explain complex legal concepts in relatable terms so you don’t get taken advantage of.
  • Gain Clarity: Get answers to all your questions.
  • Understand Your Legal Options: Make informed decisions for your future by gaining a clear understanding of the legal options available to you.
  • Personalized Advice: We’ll tailor our approach to your specific needs and goals. 
  • Navigate with Confidence: Gain the knowledge to navigate the next steps effectively and confidently, increasing your chances of achieving the best possible outcome.
  • No Obligation: No pressure; you’re free to explore your options at your own pace.
  • Confidentiality: We understand the sensitivity of your situation and respect your privacy.

TOP 3 REASONS TO CHOOSE US FOR YOUR EXPUNGEMENT

1. Personalized Defense Strategy: 

With 75+ years of combined experience, we tailor our approach to your unique circumstances.

2. Aggressive Negotiation & Representation: 

We fight to minimize penalties and protect your future.

3. Unwavering Support: 

We’re by your side throughout every step of the process. Weekly team strategy sessions ensure a comprehensive review of your case and the commitment of our entire team.

PROFESSIONAL AND COMPASSIONATE

“John is a highly respected attorney. Professional and compassionate. He has a wealth of knowledge, being a military officer and having served as an Assistant District Attorney, a Public Defender, and an Assistant Attorney General. He helped a friend’s son who was headed down the wrong path, but through John’s legal defense, the young man is now a successful business owner.”

-J.P.

FAQs

1. What should I do if I’m being investigated for a federal crime?

Remain silent and contact an experienced attorney as soon as possible. They can advise you on your rights depending on your specific circumstances and protect your interests.

2. What happens if I’m arrested on federal charges?

If you’re arrested on federal charges, you’ll have your Miranda rights read to you (right to remain silent, right to an attorney). It’s important to stay silent and request a lawyer immediately. Don’t answer questions until you have legal counsel present to avoid accidentally implicating yourself.

3. What’s the difference between a state and federal crime?

Federal crimes violate federal laws, while state crimes violate state laws. Federal crimes are often prosecuted more aggressively, with potentially harsher penalties.

Find more related information in our blog:

United States court house.

Review of the Sentencing Process in Federal Criminal Cases

Federal crimes and fraud

White Collar Crime in Federal Court

Lady justice holding scales.

What Happens When you are Accused of a Federal Crime?

Female federal criminal defense lawyer visiting a male inmate in prison.

Oklahoma Federal Criminal Defense

At Cannon & Associates, we stand ready to guide you or your loved one through the difficult and highly detailed process of facing federal criminal charges. Unlike state cases, federal prosecutions bring their own rules, procedures, and challenges. The stakes are higher, the investigations are more thorough, and the penalties are often far more severe. 

Our goal for each federal case is dismissal whenever possible. We know that the best way to protect your freedom and your future is to eliminate the charges altogether. Yet we also recognize that each federal case is different. The facts, the evidence, and even the jurisdiction can drastically impact the path forward. If dismissal cannot be achieved, our Oklahoma federal criminal defense attorneys adjust strategies quickly, focusing on reducing the charges, limiting exposure to penalties, or building a comprehensive plan for your better future.

Whether you are accused of drug trafficking, white-collar fraud, firearm offenses, or conspiracy charges, our firm brings decades of combined experience and the resources necessary to take on federal prosecutors. We have built our reputation on fighting tirelessly for our clients and preparing every case as if it will be tried in federal court.

Federal cases can be intimidating, but you don’t have to face them alone. Never risk your freedom without our federal defense attorneys at your side. Contact Cannon & Associates today to schedule a free, no-obligation case strategy session. We will answer your questions, explain the federal process, and provide a clear plan for moving forward—whether you choose to hire us or not. Call us now at 405-591-3935 to discuss your case and learn about your options.

Silhouettes of robbers with machine guns.

What Is a Federal Crime?

A federal crime is any offense prosecuted under United States federal law, rather than Oklahoma state law. These cases are handled in U.S. District Court, such as the Western District of Oklahoma in Oklahoma City or the Northern and Eastern Districts in Tulsa and Muskogee. Federal crimes are typically investigated by agencies like the FBI, DEA, ATF, IRS, or Homeland Security, and they often involve activities that cross state lines or violate federal statutes.

Examples of federal crimes in Oklahoma include drug trafficking across state borders, wire fraud involving interstate communications, federal firearms violations, and conspiracy charges. Because the U.S. Attorney’s Office prosecutes these cases, they carry harsher penalties, mandatory minimums, and stricter sentencing guidelines compared to many state-level offenses. Facing a federal indictment in Oklahoma City or surrounding areas like Norman, Edmond, or Moore requires the guidance of our federal criminal defense lawyers who know the federal system inside and out.

A woman being escorted out of an interrogation room by a cop with a lawyer sitting at the table

Federal Criminal Investigations

Federal cases often begin long before charges are filed. Investigations in Oklahoma may be conducted quietly for months or even years, with federal agents collecting evidence, executing search warrants, and issuing subpoenas. By the time someone is indicted in Oklahoma federal court, the prosecution already has a detailed case file.

Federal agencies such as the Oklahoma City FBI Field Office, the DEA’s Oklahoma Division, or the IRS Criminal Investigation Division frequently work in coordination with the U.S. Attorney’s Office. If you learn you are under investigation or receive a “target letter,” it is critical that you contact an Oklahoma federal defense attorney immediately. Acting quickly can allow your lawyer to intervene, challenge the investigation, and sometimes prevent charges from being filed at all.

Negotiations and Plea Deals

In Oklahoma, federal cases are often resolved through negotiations rather than trial. Plea agreements allow defendants to plead guilty to lesser charges or to accept reduced sentences in exchange for avoiding trial.

Plea deals can be beneficial in certain situations, but they are not always the best course of action. Prosecutors in Oklahoma federal court may use plea bargaining as leverage, pushing defendants to accept deals even when the evidence against them is weak. A well-versed federal defense attorney can evaluate the strength of the government’s case, identify weaknesses, and negotiate from a position of strength. In some situations, pressing forward to trial offers a better chance of dismissal or acquittal. Rest assured that when you work with our firm, we will pursue the best options tailored to your specific case.

What Does an Oklahoma Federal Defense Attorney Do?

A federal defense attorney does far more than appear in court. Their role begins the moment you are under investigation and continues until your case is resolved. Your federal defense attorney from our firm will:

Investigate the Prosecution’s Case

One of the most important roles of a federal defense attorney is to scrutinize the government’s evidence. Federal agencies such as the FBI or DEA often use search warrants, electronic surveillance, and wiretaps to gather information during investigations in Oklahoma. However, even federal agents must comply with constitutional protections. If a warrant was overly broad, if surveillance was conducted without proper authorization, or if evidence was seized in violation of the Fourth Amendment, that evidence may be excluded from trial. At Cannon & Associates, we carefully review every detail of the prosecution’s case to uncover weaknesses and challenge unlawful practices. Our meticulous approach often creates opportunities to suppress evidence and, in some cases, secure dismissal of charges.

Build a Defense Strategy

No two federal cases are alike, which is why a cookie-cutter defense will not work in federal court. Building a defense strategy requires analyzing the specific facts, legal issues, and procedural history of the case. This may include identifying inconsistencies in witness testimony, highlighting errors in the handling of evidence, or uncovering violations of federal procedure that undermine the government’s position. We tailor every defense plan to the client’s circumstances and goals, always with dismissal as the starting objective.

Advocate in Negotiations

While a trial is always an option, many federal cases in Oklahoma are resolved through negotiations with the U.S. Attorney’s Office. These negotiations, commonly referred to as plea bargaining, can determine whether a defendant faces decades in prison or a far more manageable outcome. Our attorneys bring years of experience working with federal prosecutors in Oklahoma City, Tulsa, and Muskogee. This familiarity allows us to negotiate from a position of strength, pressing for reductions, alternative sentencing, or diversion programs when appropriate. We never encourage clients to accept unfair deals. Instead, we leverage our preparation and trial-readiness to push the government toward terms that genuinely serve our clients’ best interests.

Prepare for Trial

If your case proceeds to trial in the Western District of Oklahoma federal courthouse in downtown Oklahoma City or another federal court in the state, preparation is key. Trials in federal court are complex, often involving expert witnesses, technical evidence, and jury instructions guided by federal law. Our Oklahoma federal criminal attorneys work closely with investigators and experts to analyze forensic reports, digital evidence, and financial records. We develop persuasive cross-examinations to challenge the government’s witnesses and craft a compelling narrative to present to the jury. By preparing every case as though it will go to trial, Cannon & Associates ensures that our clients are never left unprepared, and prosecutors know we are ready to fight in court.

Protect Your Rights

Federal criminal cases move quickly, and defendants often feel overwhelmed by the process. From the moment of arrest or investigation, it is imperative to have an Oklahoma federal criminal defense attorney safeguarding your constitutional rights. This includes ensuring that you are not subject to unlawful searches or seizures, that you are not coerced into self-incrimination, and that you receive due process at every stage of proceedings. 

Our attorneys also make certain that prosecutors follow proper discovery rules and that no evidence is withheld in violation of your constitutional rights. Protecting clients is not just about fighting charges—it is about ensuring the government respects the law while it seeks to enforce it. We stand between our clients and the full weight of federal prosecution, committed to protecting both their rights and their futures.

At Cannon & Associates, our attorneys have decades of combined experience handling federal criminal defense in Oklahoma City and across the state. We are the only firm in the area with an in-house courtroom, allowing clients to practice appearing in court and reducing the anxiety of trial.

Judge gavel sitting next to handcuffs. Our federal criminal defense lawyers represent those who’ve been accused of federal crimes in Oklahoma City.

How Much Will an Oklahoma Federal Defense Attorney Cost?

The cost of hiring a federal criminal defense attorney varies depending on the seriousness of the charges, the complexity of the case, and whether the case proceeds to trial. Federal cases in Oklahoma are often lengthy and require extensive preparation, including reviewing thousands of pages of discovery, analyzing digital evidence, and preparing for hearings in federal court.

While legal fees are a significant consideration, it is essential to recognize that the cost of not hiring an experienced attorney from our firm can be much higher. A federal conviction can result in years in prison at facilities like the Federal Correctional Institution (FCI) El Reno or FCI El Reno Camp, substantial fines, and lifelong consequences that can impact your career and reputation. At Cannon & Associates, we work with clients to clearly explain costs upfront and provide a plan for representation that prioritizes protecting their future.

A man testifying on trial.

Schedule Your FREE No-Obligation Case Strategy Session Today

Federal criminal charges in Oklahoma are among the most serious legal challenges anyone can face. Whether you are under investigation in Oklahoma City, indicted in Tulsa, or scheduled for trial in Muskogee, the outcome of your case will depend heavily on the defense you put forward.

At Cannon & Associates, we begin every case with the goal of achieving a dismissal. When dismissal is not possible, we adjust our strategy to minimize charges, reduce penalties, and protect your long-term interests. With more 5-star Google reviews than 99% of attorneys in Oklahoma, a team approach to every case, and decades of combined experience, we are prepared to stand between you and the full force of the federal government.

If you or a loved one is facing federal criminal charges in Oklahoma, now is the time to act. Call us today at 405-591-3935 or contact us online to schedule a no-obligation, FREE case strategy session. Our team of Oklahoma federal criminal defense lawyers will fight to protect your freedom and your future.

Client Review

Client Review

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Cannon & Associates

Fierce Advocates®

For Families and Freedom

Our Client Reviews

More 5-star Reviews Than 99% Of Lawyers In Oklahoma

"John has shown nothing but compassion and professional guidance in my case. He truly cares about his clients and is exceptionally understanding when it comes to any case he is representing. He communicates genuinely as well as in a timely matter. If I were able to give his firm any more than 5 stars, I most definitely would. He is incredible."

- HOLLY ROSE

"John Cannon is an awesome attorney. He is very professional and honest. He really cares about his clients. John always gets back to you quickly to answer any questions you have regarding your case. I highly recommend CANNON & ASSOCIATES for any legal needs you may have."

- SHARON PINKARD

"John Cannon has helped me through the hardest time in my life. He helped me through my divorce and custody case. He truly cares about his clients and it made me so happy he always put my daughter first and wanted what was in her best interest as a child. He is very sharp and resourceful and he has been very attentive and responsive to my needs, John is very polite and professional and he always has a great attitude. John always took the time to go over everything and explain everything in depth. I've enjoyed working with John and his team and would recommend him to other clients."

- LEXI COYLE

"I have known John for about 6 years now in his capacity as a Judge Advocate and a civilian attorney. John has a rare blend of both sharp analytical and interpersonal skills. I have seen John achieve positive outcomes for clients in complex scenarios and If you need an attorney who can do the same for you - this is your guy."

- ALAN MERRIMAN

"John did a very good job. Although the outcome was not 100% what we expected(strange judgement) it was overall positive. I would, have and will continue to recommended him. Although I certainly hope to not need his services again in the capacity I hired him for I would not hesitate to call if I do. Thanks John"

- MICHAEL RICKARD

"I signed up with John June 25th, July 5th I received an email that my case is in line to be DISMISSED, within a 2 week time period John made what was one of the most stressful times in my life better! Every case is different but he handled my case with care and he was extremely open in his communication throughout the whole process. I hope to never have to have a criminal attorney again but if I do I will definitely go back to John. I highly recommend him to anyone else who is needing an attorney!"

- ASHLEY

"John is a highly respected attorney. Professional and compassionate. He has a wealth of knowledge, being a military officer and having served as an Assistant District Attorney, a Public Defender, and an Assistant Attorney General. He helped a friend's son who was headed down the wrong path, but through John's legal defense the young man is now a successful business owner."

- ATTORNEY COLLEAGUE

"John is a very professional attorney, who is not only concerned about the welfare of his client but very attentive and considerate of the family, or other bodies that are in the face of the adversity. While working on my family members case, John took time out to take a class that would educate him on how to approach the many different types of cases tried in the court room. John proved his sincerity to the calling of his job, being an attorney. I would definitely recommend him to anyone."

- LAQUITA

"Mr. Cannon went above and beyond for my wife. She was facing some pretty hard fines and prison time with the US Marshalls. Mr. Cannon fought a hard fight and got her a GREAT offer. Words cannot express how much I appreciate him and what he did for my wife. I would give 10 stars and I will be promoting him. He's that awesome. He keeps you informed, he will text or call you back, and he goes above what he is asked to do and I can reassure you"HE WILL FIGHT FOR YOU OR YOUR FAMILY MEMBER". I will continue retaining him for other things my wife is battling. High five and a great big hug to Mr. Cannon. Thank you!!! John took the reigns and provided us instant peace of mind. He was timely, respectful, transparent, very professional, honest and courteous. The service he provided was above and beyond our expectations. Can’t believe professionals like him are around. Highly highly without reservations recommend him and his team."

- TARA

"John Cannon is an excellent attorney. He takes sincere interest in your needs. He maintains communication and provides all the information you might want to fully understand the legal process. He also suggests alternative resolutions to your legal needs so that you can make informed choices. I definitely recommend John."

- DUDLEY

"My experience with CANNON & ASSOCIATES was absolutely amazing. I hired John Cannon two days before my rebuttal statement was due back to the Staff Judge Advocate. Within that time frame he was able to talk to my Battery and Battalion Commanders, review my evidence, and help me write a rebuttal statement that help prove my case to them, the Brigade Commander and the Post Commanding General. Cannon worked thru the night to help me get the best results for me and my family. Due to his hard work and attention to detail I am still able to continue to serve my country and progress in my military career with no adverse actions on my record. I can not thank him enough on a job well done. Cannon showed me that he was invested in my case and I highly recommend you hire him when you need someone to represent you in a legal matter."

- ZAVIEN

"John Cannon assisted me through a very difficult time in my military career. He worked tirelessly with me on my case and kept me informed during the entire process. I can't say enough good things about Mr. Cannon. He's incredibly knowledgeable with regards to military justice. The outcome of my case was successful and I attribute that to Mr. Cannon's professionalism and expertise in dealing with military law. I would highly recommend Mr. Cannon to anyone with military justice or criminal defense needs."

- A FORMER CLIENT

"Hands down the best lawyer. Mr.Cannon accepted my case and got on it the same day. I would give him 10 stars if I could. I really appreciate the dedication on how he handles things with a short time frame."

- CHRIS

"Mr. Cannon has represented me on 2 criminal cases and one civil case over the past 4 years. He has always served me honestly, speedily and with good moral direction. John has integrity and humility. He has never belittled me or treated me in an unfair manor. I appreciate all that he has done for me and I most certainly recommend him to family, strangers and friends. I will definitely use Mr. Cannon in the future for any and all of my family's legal matters."

- CANDICE

"Mr. Cannon went above and beyond for my wife. She was facing some pretty hard fines and prison time with the US Marshalls. Mr. Cannon fought a hard fight and got her a GREAT offer. Words cannot express how much I appreciate him and what he did for my wife. I would give 10 stars and I will be promoting him. He's that awesome. He keeps you informed, he will text or call you back, and he goes above what he is asked to do and I can reassure you"HE WILL FIGHT FOR YOU OR YOUR FAMILY MEMBER". I will continue retaining him for other things my wife is battling. High five and a great big hug to Mr. Cannon. Thank you!!!"

- TARA

"I had a great experience with John. He is very personable and helped me a lot. I’m really grateful I found him. He made me feel confident that he was the right lawyer for my case and that he wasn’t trying to sell me but genuinely just wanted to help me. I would highly recommend John to anyone!"

- DOMINIQUE

"Working with Mr. Cannon has been a real life-saving experience for me and my family. He provides the knowledge of the possibilities as soon as he can get them, then works tirelessly to ensure that any concerns or questions are addressed immediately. He has been a great asset to us not only in the face of legal troubles, but in providing a sense of security that is truly reassuring in the face of the uncertain.Mr. Cannon has been a great resource and has been very patient with me. From the start he provided a list of things to do that would help me help him with my case and since the beginning has continued to give advice or suggestions on any matter that has bothered me with my situation, large or small. He is gentle, yet realistic, and this combination really does become a rock in tumultuous times such as these.I would highly recommend Mr. Cannon to anyone who needs a vigilant and committed attorney, especially one that stands by your side until your issue is resolved. He goes above and beyond not only to work, but to care for his clients!"

- ANONYMOUS

"John Cannon assisted me through a very difficult time in my military career. He worked tirelessly with me on my case and kept me informed during the entire process. I can't say enough good things about Mr. Cannon. He's incredibly knowledgeable with regards to military justice. The outcome of my case was successful and I attribute that to Mr. Cannon's professionalism and expertise in dealing with military law. I highly recommend Mr. Cannon to anyone with military justice or criminal defense needs."

- S VANZANTE