Receiving a contact from your agency’s Office of Inspector General – whether through a letter, a phone call, or a direct approach by an OIG special agent asking to schedule an interview – is one of the most disorienting experiences in a federal career. OIG investigators don’t typically announce in advance whether you are being contacted as a witness, a subject, or a potential target, and the institutional pressure to cooperate voluntarily can make employees feel that asking questions, consulting an attorney, or exercising any right is somehow suspicious. That pressure is real, and giving in to it without understanding what it actually means is one of the most consequential mistakes a Maryland federal employee can make at this stage of a potential investigation. Any Maryland federal employee attorney who has counseled clients through OIG investigations has seen how what employees say – or agree to say, or agree to provide – in the earliest stages of an investigation shapes outcomes that didn’t feel consequential in the moment.
The investigation stage is where cases are built, on both sides. What you do when you are first contacted matters more than anything that comes later.
The Three Positions in an OIG Investigation: Witness, Subject, and Target
OIG investigations – like federal criminal investigations generally – involve contacts with individuals in different capacities, and understanding which capacity you’re in affects your legal rights and what you should and shouldn’t do.
A witness is someone the OIG believes has relevant information about conduct it is investigating but who is not under investigation themselves. Witnesses are generally not the focus of the inquiry; their knowledge is sought to illuminate what others did. Employees contacted as witnesses often cooperate voluntarily and provide information without significant personal legal risk – but the line between witness and subject is not always as clear as the OIG presents, and employees who are told they are witnesses have sometimes discovered later that information they provided became the basis for a proceeding against them.
A subject is someone whose conduct is within the scope of the investigation. An employee designated as a subject is not necessarily going to face adverse consequences, but they are a person whose actions the OIG is examining. Subjects have significantly different rights considerations than witnesses – including the right to decline to answer questions, the right to consult with an attorney before and during any interview, and protections that limit how certain compelled statements can be used against them.
A target is someone against whom the OIG has substantial evidence supporting a criminal referral or a serious adverse action recommendation. Targets face the most significant legal exposure and should not be interacting with OIG investigators without attorney representation.
OIG investigators are not always forthcoming about which category an employee occupies when they make initial contact. An employee who assumes they are a witness and cooperates freely, only to discover they were actually a subject whose statements are now part of the evidentiary record against them, is in a situation that would have looked very different had they sought legal counsel first.
The Right to Counsel Before and During an OIG Interview
Federal employees have the constitutional right to consult with an attorney before agreeing to participate in any OIG interview, and for interviews that are not compelled under agency authority, the right to have counsel present during the interview itself. This is not a right that OIG investigators will typically volunteer to you. They may suggest that having an attorney present creates the appearance of something to hide, or that counsel will slow down a straightforward process. Neither of those things is legally relevant to whether you exercise the right.
Before agreeing to any OIG interview – voluntary or otherwise – a federal employee should consult with an attorney who can assess what is being requested, what the employee’s apparent status in the investigation is, what information the OIG is likely seeking and why, and what risks the interview presents. That consultation should happen before any date is scheduled and before any preparatory documents or information is shared informally with OIG agents outside the formal interview setting.
Voluntary Cooperation vs. Compelled Cooperation: A Critical Distinction
The distinction between voluntary and compelled cooperation in an OIG investigation has significant legal implications that most federal employees don’t understand until it matters.
Voluntary cooperation means the employee chooses to provide information, submit to an interview, or produce documents without being formally required to do so. There is no legal compulsion, no formal order, and – critically – the employee retains the Fifth Amendment right to decline to answer questions that might incriminate them. An employee who voluntarily participates in an OIG interview and makes statements that are later used as the basis for a criminal referral or a civil adverse action has provided those statements without any of the protections that attach to compelled testimony.
Compelled cooperation occurs when an agency formally orders an employee to cooperate with an OIG investigation under the threat of disciplinary action for refusal. Employees covered by the federal civil service have an obligation to cooperate with legitimate agency investigations under certain circumstances – refusing a lawful order to submit to an OIG interview can constitute insubordination, which is itself a disciplinary offense. The key word is lawful. Not every request framed as an order is actually a lawful compelled order, and the line between voluntary request and compelled order requires legal analysis in specific situations.
When an employee is formally compelled to cooperate – meaning they have been given a direct order to submit to the interview under threat of discipline for refusal – specific protections attach. Statements made under compulsion cannot be used directly in criminal prosecution against the employee. This is the so-called Kalkines warning framework – named for a federal court decision establishing that compelled statements from government employees are protected from use in criminal proceedings against them. An employee who is compelled and receives a Kalkines warning has given up Fifth Amendment protection for criminal use of those specific statements but retains protections against their direct use in prosecution.
The critical practical point: an employee who voluntarily participates in an OIG interview because they feel social or institutional pressure to do so – without a formal compulsion order – has neither the protection of compelled-statement rules nor the clean record of having formally declined cooperation. They have simply made statements that are freely usable in whatever proceedings follow.
What OIG Interviews Actually Involve
OIG special agents conduct interviews that are investigative in character, recorded or documented, and intended to gather evidence. They are trained interviewers. The conversational tone of many OIG contacts – particularly initial contacts – is not a reflection of low stakes. It is a product of interview technique.
Common patterns in OIG interviews include questions about specific documents the employee created or received, events in a particular timeframe, relationships with specific supervisors or colleagues, agency procedures around the subject matter under investigation, and the employee’s own conduct relative to those procedures. Questions that begin as seemingly background often become increasingly specific about the employee’s own knowledge and actions.
For Maryland federal employees at agencies with active OIG offices – HHS/NIH/FDA, SSA, DoD and its Maryland components, DHS – OIG investigations are not infrequent. The OIG offices at these agencies conduct reviews involving procurement, research integrity, benefits administration, and a range of operational matters that affect employees who are involved in those functions. An employee who learns their agency is under OIG review for a program area where they work should not wait to see whether they receive a contact before assessing their exposure and consulting counsel.
Document Preservation Obligations During an Investigation
One aspect of OIG investigations that employees sometimes neglect until it becomes a problem is document preservation. When an employee becomes aware that an OIG investigation involves matters in which they have a role, a litigation hold obligation may attach – meaning they should not destroy, delete, or alter documents, emails, or records relevant to the investigation even if those items would otherwise have been subject to routine deletion.
Destruction of documents after becoming aware of a federal investigation can itself constitute obstruction of justice. Employees who continue routine document management practices – deleting emails, archiving files, disposing of working papers – after becoming aware of an investigation touching their work area face risks that are independent of whether they did anything wrong in the underlying matter. The document preservation question should be among the first things an attorney addresses when an employee becomes aware they may be within the scope of an OIG investigation.
Consulting a Maryland Federal Employee Attorney Before Your First OIG Contact
The advice to consult an attorney before interacting with OIG investigators is not strategically motivated by any assumption of wrongdoing. It is the rational response to being in a consequential situation where what you say and how you say it will become part of a formal investigative record. Employees who cooperate freely out of institutional loyalty and confidence in their own conduct have sometimes found that the record they created was more complex than their recollection of events justified.
The Mundaca Law Firm represents federal employees throughout Maryland who are navigating OIG investigations, adverse actions arising from OIG findings, and the intersection of investigation outcomes with EEO and whistleblower claims. If you have been contacted by an OIG investigator or have reason to believe you are within the scope of an active investigation, contact the firm before your next interaction with investigators. That consultation costs nothing in terms of commitment and provides information that is not available any other way.












