U.S. Attorney's Office for the District of Wyoming

U.S. Attorney's Office for the District of Wyoming Official page of the United States Attorney's Office for the District of Wyoming.

As the chief federal law enforcement officer in Wyoming, it is the responsibility of the United States Attorney and their staff to guide federal investigations and prosecute offenders for the federal crimes they have committed. The United States Attorney’s Office also defends and advances the interests of the United States in civil litigation and takes action to collect debts owed to the United St

ates when those debts are administratively uncollectible. We strive to protect and serve the citizens and residents of the United States in Wyoming by undertaking legal activities that are fair and ethical, and by engaging in prevention efforts to help individuals avoid victimization. Our attorneys and staff are devoted public servants who work diligently. This site offers information about who we are, the work we do on behalf of the citizens and residents of the United States and how we are organized to complete that work.

Today is the 15th annual World Elder Abuse Awareness Day, now more than ever, we remain committed to preventing and pros...
06/15/2026

Today is the 15th annual World Elder Abuse Awareness Day, now more than ever, we remain committed to preventing and prosecuting those who target older Americans. If you are a victim of Elder fraud, or know someone who is, take action and call: 1-833-372-8311.

SAVE THE DATE!World Elder Abuse Awareness Day Webinar 2026Date: June 15thTime: 1:00 PM – 3:00 PM MST. Click here to join...
06/12/2026

SAVE THE DATE!
World Elder Abuse Awareness Day Webinar 2026
Date: June 15th
Time: 1:00 PM – 3:00 PM MST. Click here to join: http://meet.google.com/tdi-ncxn-xvw

The Wyoming Long-Term Care Ombudsman, the Department of Family Services, and the Wyoming Department of Health’s Aging Division along with special guests Travis Kirchhefer, Medicaid Fraud Control Unit and Ray Macchia, Legal Aid of Wyoming, are pleased to invite you to a joint webinar to raise awareness about elder abuse in Wyoming.

No registration is required. Please share this invitation with others who may be interested.

06/05/2026

The U.S. Attorney's Office for the District of Wyoming recently announced Nicholas Rierson, 35, of Cheyenne, was sentenced to prison for possession with intent to distribute methamphetamine and possession with intent to distribute fentanyl.

During an investigation conducted by Cheyenne Police Detectives, Rierson’s residence was identified as a place where controlled substances were being distributed. Officers conducted a traffic stop on his vehicle and located 10 grams of fentanyl. During an interview, Rierson admitted to distributing methamphetamine as well as fentanyl and told officers they would find more drugs in totes under his deck. Detectives located 462 grams of methamphetamine and 109 grams of fentanyl in the totes.

Members of the Cheyenne Police Department Community Action Team and Drug Enforcement Administration (DEA) investigated the crime.

Read more - USAOWY Recent Sentencings: https://www.justice.gov/usao-wy/pr/activity-us-attorneys-office-75

We made one last donation today to the Care and Share Food Bank in Lander. Thanks to the team in Lander for coming throu...
05/21/2026

We made one last donation today to the Care and Share Food Bank in Lander. Thanks to the team in Lander for coming through!

As part of Freedom 250, our office is honoring the country by giving back to our community! This week, staff gathered no...
05/20/2026

As part of Freedom 250, our office is honoring the country by giving back to our community! This week, staff gathered non-perishable items and donated them to local food banks. Today we provided food to the Safe House in Cheyenne and the Seton House in Casper! https://freedom250.org/

RECENT SENTENCINGS:
05/18/2026

RECENT SENTENCINGS:

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2120 Capitol Avenue, Suite 4002
Cheyenne, WY
82001

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