Trust Our Des Moines Lawyers For Federal Criminal Defense

Last updated on March 10, 2026

The federal court system is not just another court. Federal criminal laws are different from state criminal laws, with their own standards, burdens, definitions and penalties for different crimes. Further, the federal court has its own rules and procedures, which are often much more rigorous and complicated compared to their state counterparts. If you are facing criminal charges in federal court, it is essential to work with an attorney who has been there before.

At Spellman Law, P.C., we are a criminal defense law firm that brings experience, skill and focus when it comes to defending clients against federal criminal charges. Our attorneys focus exclusively on criminal defense.

We Strongly Defend Against Drug Charges Throughout Iowa

Interstate drug charges are among the most common drug crimes that will be prosecuted in federal court, though the federal government will try many other drug cases, as well. We defend clients against:

• Felony drug charges
• Delivery of controlled substances
• Marijuana crimes

Experienced In Federal Gun Cases

We also represent clients in a wide range of federal drug crime-related matters, including against federal gun charges.

• Felony possession of a firearm: After certain crimes, it is prohibited for people convicted of certain crimes to carry a firearm. To be a prohibited person in possession of a firearm is a federal crime.
• Firearm enhancements: This is a big issue that we handle with some frequency. Many otherwise relatively benign criminal sentences like simple possession of marijuana, will be increased as a result of the presence of a firearm.
• Conceal and carry: Iowa recently changed state laws, making it easier for a person to obtain a conceal and carry permit.

Internet Crime Cases

Many internet crimes involve virtual information traveling across state lines, increasing the frequency of internet crimes being prosecuted at the federal level.

The Importance Of Challenging Federal Sentencing Guidelines

When a crime is prosecuted in federal court, the court follows the sentencing guidelines and mandatory minimum sentences. Although these guidelines make clear the types of penalties that judges can administer for various criminal convictions, judges do have leeway to impose sentences that are outside of the scope of these guidelines. There is often room to convince a judge that a downward departure is in order, possibly reducing the fines, jail time and other penalties.

What Law Enforcement Agencies Handle Federal Criminal Cases?

Federal criminal investigations in Iowa can involve multiple agencies, each with its own jurisdiction and specialized focus. They often work together when a case crosses state lines, involves national security concerns or requires resources beyond those available to local departments.

Federal agencies commonly involved in Iowa criminal investigations often include:

• Federal Bureau of Investigation (FBI)
• Drug Enforcement Administration (DEA)
• Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF)
• Department of Homeland Security (DHS)
• U.S. Marshals Service (USMS)
• Internal Revenue Service Criminal Investigations Division (IRS-CI)

These offices handle matters like violent federal crimes, drug trafficking, weapons violations, financial crimes and national security threats.

The FBI plays a central role in many federal cases, particularly those involving public corruption, cybercrime, terrorism, interstate fraud and major violent offenses. Iowa is served by the West Des Moines FBI Office, at 4401 Westown Parkway, which is part of a nationwide network of 56 field offices and over 350 resident agencies. This location coordinates investigations in the region, often working closely with local law enforcement when cases require federal authority or resources.

Federal agencies often collaborate with state police departments and sheriff’s offices through joint task forces. These partnerships allow federal and local officers to share intelligence, conduct coordinated operations and respond quickly to threats. For example, Joint Terrorism Task Forces (JTTFs) involve investigators from federal, state and local agencies to address terrorist activity and maintain communication across jurisdictions. 

The U.S. Attorney’s Office for the Southern District of Iowa oversees federal prosecutions and works directly with other agencies to determine charges and litigation strategy. This office coordinates with federal courts, helping ensure cases proceed according to federal rules and procedures. It is headquartered in the Neal Smith Federal Building at 210 Walnut Street, Suite 455, in Des Moines. 

An experienced defense lawyer plays a crucial role in protecting the rights of the accused when federal agencies become involved. They can manage communications, prevent avoidable missteps and make certain that investigators follow proper procedures.

‘Federal’ Does Not Mean ‘Felony’

Many people assume that “felony” and “federal charge” mean the same thing. The truth is, not every felony charge is a federal crime and vice versa. Iowa’s criminal code contains many felonies. And a misdemeanor committed on federal property, such as a military base, is charged in federal court. We are equally able to defend you, regardless of the level of crime you are accused of and in which court.

We Are Here To Defend Charges And Protect Your Rights

Call our West Des Moines office day or night at 515-222-4330 to schedule a free initial consultation with one of our attorneys. We are available 24/7.

We serve clients throughout central Iowa and beyond.