When federal criminal charges are filed against you in Colorado, the lawyer you hire matters — you need an experienced criminal defense attorney in Colorado! Not just in terms of courtroom experience, but in terms of whether your attorney actually understands the evidence being used to put you away.
At The Ambeau Law Firm, you get something rare: a seasoned trial attorney who is also a court-qualified expert in forensic DNA interpretation, with a Master of Science in Forensic DNA and Serology from the University of Florida.
Jarrett P. Ambeau is licensed to practice in federal court in Colorado and is in the process of obtaining his Colorado state license. He has tried more than 55 felony jury trials to verdict — including complex cases built on DNA, forensic science, and expert testimony. He has been qualified as an expert witness in forensic DNA interpretation in Louisiana district courts, has appeared as co-counsel in first-degree murder trials to handle DNA examination directly, and has consulted on federal DNA cases in multiple states.
Federal Criminal Defense in Colorado
Federal charges carry federal consequences — mandatory minimums, sentencing guidelines, and prosecutors who have effectively unlimited resources. The cases The Ambeau Law Firm handles in Colorado federal court include:
Violent Crimes and Firearms Offenses
Federal violent crime and firearms cases frequently turn on physical evidence — DNA touch samples, low copy number (LCN) DNA analysis, ballistics, and crime scene reconstruction. Mr. Ambeau has filed Daubert challenges to LCN DNA evidence in federal court and knows the science well enough to expose its limits to a jury.
Sex Offenses and SANE Evidence
Federal sex offense prosecutions are among the most evidence-intensive cases in the criminal justice system. We scrutinize the collection, handling, and interpretation of biological evidence — chain of custody, lab protocols, mixture interpretation, and probabilistic genotyping software — with the same rigor as the scientists who produced it.
White Collar, Fraud, and Federal Conspiracy
Federal conspiracy charges are broad by design. We build defense strategies that attack the government’s theory of the case from the beginning — working toward trial while evaluating every pretrial motion that could suppress evidence, narrow the charges, or force early disclosure.
Drug Trafficking and Distribution (21 U.S.C. § 841)
Federal drug charges routinely involve forensic evidence — lab analysis of controlled substances, DNA on packaging, and cell phone location data. We know how to challenge each layer of that evidence, including the reliability of the lab analysis itself.
DNA and Forensic Science evidence
When you are facing DNA or other forensic science evidence you must have an attorney that understands the science. Experts serve a purpose in the courtroom, and your attorney must still conduct direct and cross examinations. This is where Jarrett Ambeau comes in as a court-qualified DNA expert, to bring extensive experience and knowledge to the examination of the evidence.
Extensive Trial Experience
Jarrett Ambeau, our trial attorney, has more then 60 felony jury trials to verdict. Experience makes a difference – hire someone who can win!
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DNA and Forensic Science Defense: A Genuine Advantage
Most criminal defense attorneys hire a DNA expert when they need one. Jarrett Ambeau is one. That distinction changes what is possible at every stage of your defense.
Mr. Ambeau holds a Master of Science in Forensic DNA and Serology from the University of Florida, where his coursework covered forensic DNA analysis I and II, forensic genetics, probabilistic genotyping, laboratory quality assurance and quality control, forensic immunology, and mammalian molecular biology, among other disciplines. He has completed additional forensic training with the National Institute of Standards and Technology (NIST), the American Academy of Forensic Sciences (AAFS), the National Forensic College at Cardozo Law School (with the Innocence Project), and the International Symposium on Human Identification.
He serves as an observer on the AAFS ASB Standards Board DNA Consensus Body — the group that writes the national standards governing how forensic DNA evidence is produced and validated. He is a member of the American Association for Laboratory Accreditation. He has taught DNA evidence to criminal defense attorneys across Louisiana at CLE seminars for over a decade, including presentations on probabilistic genotyping software such as TrueAllele and STRmix.
He has been featured in the Netflix documentary I Just Killed My Dad, reflecting his work at the intersection of high-stakes criminal defense and complex forensic evidence.
With years of experience in the industry, our company has established a strong reputation for excellence and reliability. We have a proven track record of delivering outstanding results and have helped countless individuals achieve their dreams. Our commitment to continuous learning and innovation ensures that we stay ahead of the curve and provide the best solutions for our clients. Choose our company and let us be your partner in success.
In practice this means:
We can read and interpret the raw electropherogram data — the actual output of the DNA testing — not just the lab’s summary report.
we can identify whether the lab followed its own validated protocols, and whether deviations from those protocols affected the result.
We can evaluate probabilistic genotyping software outputs (TrueAllele, STRmix, etc.) and challenge the statistical weight assigned to a DNA match.
We can assess mixture interpretation — cases where multiple contributors are present — and expose the assumptions baked into the government’s analysis.
We can file and argue Daubert motions to exclude unreliable DNA evidence before it reaches the jury.le to ensure the success and satisfaction of our clients.
Experience that matters
With years of experience in the industry, our company has established a strong reputation for excellence and reliability. We have a proven track record of delivering outstanding results and have helped countless individuals achieve their dreams. Our commitment to continuous learning and innovation ensures that we stay ahead of the curve and provide the best solutions for our clients. Choose our company and let us be your partner in success.
Frequently Asked Questions
Are you licensed to practice law in Colorado?
Yes — Jarrett Ambeau is licensed in the United States District Court for the District of Colorado and is in the process of obtaining his Colorado state bar license. If your case is in federal court in Colorado, he can represent you now. If your case is in Colorado state court, contact us to discuss your timeline and options
What makes The Ambeau Law Firm different from other criminal defense attorneys in Colorado?
Most defense attorneys retain a forensic expert when the case requires one. Jarrett Ambeau holds a Master of Science in Forensic DNA and Serology and has been court-qualified as an expert in forensic DNA interpretation. He can review the actual lab data in your case — not just the summary — and identify weaknesses the government’s expert may have glossed over. In DNA-heavy federal cases, that is a material advantage.
What types of federal criminal cases do you handle in Colorado?
Drug trafficking and distribution, firearms offenses, sex offenses, violent crimes, white collar and fraud, and federal conspiracy charges. Cases involving forensic evidence — DNA, serology, digital data, or expert testimony — are a particular focus.
Can you challenge DNA evidence that has already been admitted?
The admissibility of DNA evidence can be challenged through a Daubert motion before or during trial. If evidence has already been admitted, our focus shifts to cross-examination and challenging the weight the jury gives to that evidence. We have experience doing both.
What is probabilistic genotyping, and why does it matter?
Probabilistic genotyping refers to software programs — TrueAllele, STRmix, and others — that use statistical models to analyze complex DNA mixtures and produce a numerical likelihood ratio expressing how much more likely the evidence is if the defendant is a contributor. These programs are powerful, but they are not infallible. The assumptions built into the model, the validation data behind it, and the way the analyst interpreted the output all affect the reliability of the result. Mr. Ambeau has trained on these programs and presented on them at CLE seminars. We know where the vulnerabilities are.
How do I get started?
Call The Ambeau Law Firm at (330) 747-3311 or email jarrett@ambeaulaw.com. We will discuss your case, the charges you are facing, and whether federal representation in Colorado is the right fit. There is no obligation to retain, and consultations are handled directly with Jarrett Ambeau.
Take Action Now
Contact The Ambeau Law Firm
Federal charges in Colorado demand a defense built on preparation, forensic sophistication, and trial experience. If DNA evidence is part of your case, you deserve an attorney who has spent his career learning exactly how that evidence is made — and how it can be challenged.
The Ambeau Law Firm
4970 Bluebonnet Blvd., Suite C | Baton Rouge, Louisiana 70809
(330) 747-3311 | jarrett@ambeaulaw.com | www.ambeaulaw.com
Licensed: U.S. District Court, District of Colorado | Louisiana State Bar No. 32089