Federal Arrest Warrants: Can You Search the US Marshals Warrant Database?

Law enforcement agencies like the FBI, DEA and ATF have the authority to investigate crimes on behalf of the federal government. If agents believe that a crime might have been committed, they will pursue the case and gather evidence.

Under Federal Rule of Criminal Procedure 4, a judge issues an arrest warrant on a complaint when the required probable cause is established. Rule 9 governs warrants or summonses after indictment or information. A federal warrant can be executed by an authorized officer, not only the U.S. Marshals, and not every federal arrest requires a warrant.

For most people who have dealt with federal criminal investigations, the most nerve-racking part of this is suspecting that you might be under watch but never fully knowing until it’s too late. Federal law enforcement officers work in secrecy, and they can spend months or even years investigating a case before a suspect learns that they are under investigation.

If you suspect that you are under federal investigation or that there might be an active warrant for your arrest, it’s important to speak with a federal defense attorney as soon as possible. Your attorney can help you understand your case and advise you on the best route forward.

How do I know if I have a federal arrest warrant? Can I search the US Marshals’ warrant database?

The U.S. Marshals Warrant Information System (WIN) tracks federal warrant status and related records. Its access is restricted to authorized users; it is not a public comprehensive warrant-search service.

Most people learn that they have a federal warrant when the U.S. Marshals arrive at their home or workplace to arrest them. You might find out that you have a federal warrant ahead of time if:

• A relative or close associate is contacted or arrested by federal agents.
• Marshals arrive at your home or workplace to arrest you and you aren’t there.
• You receive a letter from the court notifying you.

What should I do if I have a federal arrest warrant?

Your lawyer can contact the appropriate prosecutor or executing agency to verify what can be disclosed and, when possible, coordinate a surrender and court appearance. A sealed case or active investigation may limit the information available.

This might seem counterintuitive, but this saves you from having to deal with the stress and chaos of the U.S. Marshals appearing at your home or workplace. It also gives your attorney the opportunity to contact the U.S. Attorney and schedule a prompt initial appearance and detention hearing on your behalf. You’ll need to be in custody long enough to be booked, but this allows you to appear in court and argue for bail as soon as possible.

A coordinated voluntary appearance can be relevant to the release analysis, but it does not guarantee release. Under 18 U.S.C. 3142, the court considers appearance risk, public safety and statutory presumptions, among other matters. Federal release commonly involves conditions rather than a commercial bail bond.

Federal Rule 5 requires an initial appearance without unnecessary delay after arrest. A person who has not privately retained counsel does not forfeit that requirement; appointed counsel may be available. Arrest location and court scheduling can affect how the case proceeds.

How to hire a federal defense attorney

With the urgency of the situation, it might feel tempting to hire the first federal defense attorney you speak with. There are a number of skilled and excellent federal defense attorneys throughout the Los Angeles area and California.

However, it’s important to hire the right attorney for your situation.

Most attorneys offer initial consultations, which give the attorney the opportunity to review the case with you and answer any questions you might have. When interviewing attorneys, there are a few key questions to answer:

1. How is the attorney’s communication style? Can they explain what is happening clearly, and can you see them confidently defending you in a courtroom?
2. Does this attorney have an established history in representing cases like yours? Not just federal cases — has this attorney defended drug trafficking, for example, or wire fraud cases in the past, and what were the results?
3. Ask how the attorney will address the initial appearance, detention hearing, discovery and contact with the investigating agency. Specific explanations are more useful than promises of an aggressive result.

Federal criminal defense attorney Robert M. Helfend is based in the Los Angeles area and has practiced federal criminal defense nationwide since 1984. Call today to discuss your case – 800-834-6434.

How can a federal warrant be checked?

Resource	What it can and cannot establish
PACER and the district-court docket	May show an unsealed case and court orders. A sealed warrant or investigation may not appear in a public search.
The issuing district and counsel’s agency contact	Can help confirm the case, executing agency and appearance arrangements, when disclosure is permitted.
A public wanted-person page	Lists selected fugitives; absence is not proof that no warrant exists.
WIN or NCIC	Restricted law-enforcement systems, not databases a private search company can promise to search completely.

For a consultation, keep any notice, subpoena, agent contact card, case number and current release conditions. Counsel should assess whether a warrant is federal, state or a supervision warrant, because the court and release procedures differ.

Sources and legal standards

• Federal Rules 4, 5 and 9
• WIN access and purpose
• 18 U.S.C. 3142

Legal information checked October 10, 2026. The charge, evidence and applicable version of the law control the analysis of an individual case.

References

1. California Penal Code Section 813. https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?sectionNum=813&lawCode=PEN
2. Federal Rules of Criminal Procedure, Rule 4(a). https://www.law.cornell.edu/rules/frcrmp/rule_4
3. Federal Rules of Criminal Procedure, Rule 9(a). https://www.law.cornell.edu/rules/frcrmp/rule_9