A 15-6 investigation into a hostile work environment is the Army’s standard fact-finding inquiry under Army Regulation 15-6, in which an investigating officer gathers evidence, interviews witnesses, and recommends whether corrective action is warranted, using a preponderance-of-the-evidence standard — meaning the investigator only has to conclude that the alleged conduct more likely than not occurred. Your rights during the process depend on two things: whether the investigation is informal or formal, and whether you are the subject of the allegations, a witness, or the person who reported the conduct.
What Triggers a 15-6 for Hostile Conduct
These investigations usually begin with a report from a service member, civilian employee, or bystander describing conduct that may violate Army Regulation 600-20, which governs Army command policy and prohibits harassment, bullying, discriminatory behavior, and online misconduct directed at other service members or employees.1Department of the Army. Army Regulation 600-20 – Army Command Policy
Not every complaint produces a 15-6. The commander who receives the report weighs the severity and credibility of the allegations before appointing an investigating officer. Some complaints run first through the Army’s Equal Opportunity process under AR 600-20, and the commander may direct a 15-6 later if a broader or more detailed inquiry is needed. The appointment memorandum spells out the scope of the investigation and the suspense date.
Informal vs. Formal Procedures
This distinction matters more than almost anything else in a 15-6, and most people involved in one never hear it explained clearly. Most hostile work environment investigations use informal procedures: a single investigating officer interviews people and collects documents. A formal track also exists, and the rights available to participants differ sharply depending on which one applies.
An informal investigation does not designate anyone as a “respondent.” No one in an informal 15-6 is entitled to notice of the proceedings, an opportunity to participate in hearings, representation by counsel, or the right to cross-examine witnesses.2United States Army. 15-6 Investigation Officer Guidelines The investigating officer can still make adverse findings against specific individuals. The lack of respondent status doesn’t protect anyone from negative outcomes. It simply means the process moves faster and with fewer procedural safeguards.
Formal procedures apply when the appointing authority designates a respondent, which typically happens in cases with potentially severe consequences for a named individual. A formal investigation uses a board of officers and gives the respondent advance copies of all unclassified evidence, the right to have counsel present at all open sessions, and the ability to call and cross-examine witnesses.2United States Army. 15-6 Investigation Officer Guidelines If you learn that a 15-6 has been opened involving your unit, the first question to ask is whether it’s informal or formal. The answer shapes everything that follows.
What Counts as Hostile Conduct Under Army Standards
Under AR 600-20, hostile conduct includes behavior that creates an intimidating or offensive environment and interferes with a person’s ability to do their job. This goes beyond isolated rude comments. The regulation addresses harassment, bullying, discriminatory behavior, and online misconduct as categories of prohibited conduct.1Department of the Army. Army Regulation 600-20 – Army Command Policy
Investigators look at whether the behavior was severe or pervasive enough to alter the conditions of the workplace. A single off-color joke probably won’t meet the threshold. Repeated targeting of an individual through derogatory remarks, exclusion from duties, or bullying that continues after being addressed is the pattern investigators are trained to identify. Frequency, severity, whether the behavior was physically threatening, and whether it unreasonably interfered with someone’s work performance all factor into the analysis.
How Evidence Is Gathered and Findings Are Made
The investigating officer builds the factual record through witness interviews, written statements, emails, text messages, performance evaluations, counseling records, and any other documents that bear on the allegations. Witness credibility matters. When statements conflict, the investigator assesses which accounts are most consistent with the documentary evidence and with each other.
One thing that catches people off guard: in an informal 15-6, the investigating officer can interview anyone and collect any relevant document without giving the subject advance notice or the opportunity to be present. There is no discovery process like in a courtroom. The first time the subject learns what evidence exists may be after the investigation concludes and the appointing authority takes action.
The investigating officer applies the preponderance-of-the-evidence standard, asking whether the alleged conduct is more likely than not to have occurred based on the evidence collected.3United States Army. AR 15-6 Investigation Procedures for the Investigating Officer This is a lower bar than the “beyond a reasonable doubt” standard used in courts-martial, which means conduct can be substantiated through a 15-6 even if it might not hold up in a criminal prosecution.
The report details the factual findings and recommends a course of action, which might include corrective training, policy changes, or specific disciplinary measures. But the appointing authority is not bound by those recommendations. The commander can take more or less severe action than recommended, and can consider information the investigating officer did not review.4Defense Technical Information Center. AR 15-6 Investigations
AR 15-6 does not set a fixed deadline for completing an investigation. The appointing authority sets a suspense date in the appointment memorandum, and extensions can be granted.2United States Army. 15-6 Investigation Officer Guidelines Hostile work environment investigations often take several weeks to a few months, depending on the number of witnesses, the complexity of the allegations, and the investigating officer’s other duties.
Your Rights If You’re the Subject
In an informal 15-6, which covers most hostile work environment investigations, the person under scrutiny is designated a “subject,” not a “respondent.” A subject does not automatically have the right to legal representation during the investigation. That right can arise if, during the investigation, the subject becomes suspected of committing a criminal offense. At that point, the investigating officer must advise the subject of their rights under Article 31 of the Uniform Code of Military Justice — the military equivalent of Miranda rights — before continuing any questioning.
Even without an automatic right to counsel, nothing prevents a subject from consulting with a military attorney at the Trial Defense Service or retaining a civilian attorney. Given that a 15-6 can lead to career-ending consequences, speaking with an attorney before making any written or oral statement is a sound move regardless of whether you’re formally entitled to one.
Commissioned officers who receive adverse findings have a specific regulatory right to submit a written response before final action is taken. The appointing authority may extend this opportunity to others but is not required to do so for enlisted personnel or civilian employees in informal investigations.2United States Army. 15-6 Investigation Officer Guidelines
Protections If You Reported or Cooperated
Retaliation against anyone who reports misconduct or cooperates with a 15-6 investigation is prohibited. AR 600-20 incorporates the Army’s anti-retaliation policies and specifically addresses the prohibition of retaliation against soldiers who report criminal offenses.1Department of the Army. Army Regulation 600-20 – Army Command Policy
Federal law provides additional protection. Under 10 U.S.C. § 1034, known as the Military Whistleblower Protection Act, no one may take or threaten an unfavorable personnel action against a service member for reporting a violation of law or regulation through protected channels. Protected channels include communications to members of Congress, inspectors general, military law enforcement organizations, and anyone in the chain of command. The law also protects service members who participate in or assist with an investigation. Prohibited retaliatory actions include negative evaluations, reassignment to lesser duties, threats, and even conducting a retaliatory investigation against the reporting service member.5Office of the Law Revision Counsel. 10 USC 1034 – Protected Communications Prohibition of Retaliatory Personnel Actions
If retaliation occurs, the service member can file a complaint with the Department of Defense Inspector General, which evaluates three conditions: whether a protected communication occurred, whether the person who retaliated knew about it, and whether an unfavorable action followed.6U.S. Department of Defense Office of Inspector General. Whistleblower Reprisal Investigations Allegations of reprisal must generally be filed within one year of the date the service member becomes aware of the retaliatory action.5Office of the Law Revision Counsel. 10 USC 1034 – Protected Communications Prohibition of Retaliatory Personnel Actions
Civilian employees working on Army installations have a separate set of protections. Title VII of the Civil Rights Act of 1964 prohibits workplace discrimination and retaliation based on race, color, religion, sex, or national origin.7U.S. Equal Employment Opportunity Commission. Title VII of the Civil Rights Act of 1964 Civilian employees who experience retaliation for participating in a 15-6 investigation can file a charge of discrimination with the Equal Employment Opportunity Commission.8U.S. Equal Employment Opportunity Commission. Filing a Charge of Discrimination
Possible Outcomes
When an investigation confirms a hostile work environment existed, consequences range from corrective training to separation from service. On the lighter end, the appointing authority might direct mandatory training, reassign personnel, or issue a formal counseling statement. For more serious findings, the options escalate to letters of reprimand, reduction in rank, or initiation of separation proceedings.
One outcome worth understanding is the General Officer Memorandum of Reprimand, or GOMOR. A GOMOR is a written reprimand signed by a general officer, and it can be filed in one of two places: a soldier’s local personnel file or their permanent Official Military Personnel File (OMPF). A locally filed GOMOR is destroyed after three years or upon a permanent change of station, and promotion boards never see it. A GOMOR filed in the OMPF stays there for the duration of a career unless successfully appealed, and it is visible to every future promotion board, which can stall or end career progression.9United States Army. GOMOR and Letters of Reprimand Soldiers who receive a GOMOR get the opportunity to submit a rebuttal before the filing decision is made, and the quality of that rebuttal can influence whether the reprimand lands in the local file or the permanent one.
In severe cases involving criminal conduct such as sexual harassment, assault, or threats, the matter may be referred for action under the Uniform Code of Military Justice, which can result in court-martial proceedings and penalties well beyond administrative action.
Rebuttal and Appeals
The right to formally rebut adverse findings from a 15-6 investigation is narrower than most people assume. Under AR 15-6, commissioned officers have a regulatory right to respond to adverse information in the report before the appointing authority takes final action. The appointing authority may extend that opportunity to enlisted soldiers or civilian employees, but the regulation does not require it for informal investigations.2United States Army. 15-6 Investigation Officer Guidelines
When a rebuttal is permitted, the individual submits a written statement objecting to the findings, presenting additional evidence, or challenging the credibility of witness statements. The appointing authority reviews the rebuttal and decides whether to adjust the findings, modify the recommended action, or direct additional investigation. The final decision rests with the appointing authority, who has broad discretion and is not bound by either the investigator’s recommendations or the rebuttal.4Defense Technical Information Center. AR 15-6 Investigations
If the resulting action includes a GOMOR filed in the OMPF, the soldier can later petition for its removal through the Army Board for Correction of Military Records. That process can take months, and the success rate is not high. The better strategy where possible is to engage the process early: consult with a Trial Defense Service attorney before making statements, submit a strong rebuttal if given the chance, and address the GOMOR filing decision before the reprimand reaches the permanent file.