Federal Investigations (OIG/AIB) Attorneys: Defending Federal Employees Nationwide
Last updated on August 27, 2026
An investigator might tell you they just want “a quick talk” to hear your side of the story. Do not fall for it. Investigators intentionally frame these meetings as informal chats to put you off guard while they gather evidence to build a case against you. Going through this interview without legal representation may lead to self-incrimination, suspension or removal.
At Southworth PC, our federal investigation attorneys spend their careers passionately protecting federal civil service employees and Department of Defense (DOD) personnel all over the country. Our legal team intimately understands federal sector regulations and knows how to shield you during an inquiry. We offer a free initial case assessment to help you protect your career and security clearance before you answer a single question.
Understanding Different Federal Investigations
Federal agencies investigate employees in two main ways depending on the issue:
- Office of Inspector General (OIG) investigations: OIG special agents handle severe cases such as financial fraud or other potential criminal acts.
- Administrative Investigation Boards (AIB) and Internal Affairs: An AIB panel investigates workplace issues, misbehavior or safety problems.
No matter which group interviews you, you do not have to go in alone. Union members can invoke their Weingarten rights and bring a representative. However, a union rep is not an attorney. Only an experienced federal employment lawyer can help keep your conversations private and build a real legal defense.
Explaining Critical Warnings In Federal Investigations
Before an interview begins, investigators must give you an official warning. Understanding which warning you get protects your career and your rights:
- Garrity warning: This applies when investigators look into potential criminal charges. It protects your right to remain silent so you do not say anything that could be used against you in a criminal court.
- Kalkines warning: This applies to internal workplace regulations rather than criminal matters. It grants you criminal immunity, meaning your statements cannot be used to send you to jail. However, it forces you to answer every question truthfully.
If you receive a Kalkines warning and stay quiet anyway, your agency can fire you immediately for failing to cooperate.
How Southworth PC Can Help
You do not have to face federal investigators alone. Before your interview, our legal team will thoroughly prepare you by reviewing the allegations and helping you practice how to answer complex questions. During questioning, we sit right beside you to protect your rights.
As your attorneys, we will formally challenge the legal validity of the investigation. If management launched the review as payback for whistleblowing or filing a complaint, we will document that retaliation.
Common Questions About Federal Investigations
Below are answers to key questions federal employees ask during an investigation:
Do I need a lawyer for a federal OIG investigation?
Yes. OIG agents are skilled investigators, and an administrative interview can quickly escalate into a criminal matter. Having an experienced federal employment lawyer present may prevent agents from asking misleading questions and stop them from mischaracterizing your responses.
What are Kalkines and Garrity warnings for federal employees?
A Garrity warning informs you of your right to remain silent because your answers can be used against you in criminal proceedings. Meanwhile, a Kalkines warning grants you immunity from criminal prosecution but makes answering questions mandatory.
Can a federal employee be fired for refusing to answer OIG questions?
Kalkines shields your statements from criminal prosecution. However, remaining silent after receiving it means a failure to cooperate, giving your agency legal grounds to fire you.
Understanding these warnings before speaking to investigators is essential to avoiding critical legal mistakes.
Discuss Your Case With Our Federal OIG Investigation Attorneys Today
Do not wait until investigators schedule your interview to take action. Having a federal investigation attorney in your corner is crucial if you want to protect your rights. Contact our team today at 888-899-7284 or fill out this form to set up a free initial appointment.