AF Form 3987: Case File Documents Inner Envelope (Download)

AF Form 3987: Case File Documents Inner Envelope (Download) – The AF Form 3987, officially titled Case File Documents Inner Envelope, is a specialized U.S. Air Force form used to organize, protect, and secure supporting documents within investigative or administrative case files. It works together with AF Form 3986 (Case File Documents Outer Envelope) to maintain the integrity, chain of custody, and controlled access to sensitive printed materials in Security Forces (SF) and Air Force Office of Special Investigations (AFOSI) cases.

Air Force members involved in law enforcement, investigations, or records management need to understand this form for proper handling of case files, especially those involving interviews, evidence documentation, and supporting materials.

What Is AF Form 3987?

AF Form 3987 is a physical inner envelope designed to hold smaller or loose documents and items that support a case file. It prevents materials from getting lost or separated inside the larger outer envelope (AF Form 3986).

Key details:

  • Form Title: Case File Documents Inner Envelope
  • Edition Date: September 1, 1996 (still referenced in current instructions)
  • Primary Users: Air Force Security Forces (SF) and AFOSI investigators
  • Purpose: Secure storage and organization of printed investigative documents, notes, statements, and small supporting items

It is not a report form like AF Form 3985 (Interview Record) but a physical container for maintaining case integrity.

Official Purpose and Use in Air Force Investigations

According to DAFI 71-101 Volume 1 (updated as of January 2025), AFOSI and Security Forces use AF Form 3986 (outer) and AF Form 3987 (inner) as appropriate for maintaining printed investigative documents.

In Security Forces procedures (older but foundational guidance still aligned with current practice):

  • All case notes, supporting documentation, statements, search authorities, evidence tags, and other materials (that are not formal exhibits) go into the inner envelope.
  • Smaller items are placed inside the AF Form 3987 to keep them together and prevent loss before insertion into the AF Form 3986 outer envelope.
  • To restrict access to sensitive case notes to personnel with a “need-to-know,” the inner envelope is sealed and initialed.

This two-envelope system helps:

  • Protect chain of custody for investigative materials.
  • Organize non-exhibit supporting documents separately from the main Report of Investigation (ROI) or AF Form 3545.
  • Facilitate secure submission or storage of case files.

How to Use AF Form 3987 (Step-by-Step)?

  1. Gather Supporting Documents — Collect notes, statements, evidence tags, search authorities, or other non-exhibit materials related to the case.
  2. Place Smaller Items in Inner Envelope — Insert loose or small documents into the AF Form 3987 to keep them organized and prevent them from shifting or being lost inside the outer envelope.
  3. Seal and Initial (When Required) — For sensitive case notes or materials requiring restricted access, seal the envelope and add your initials. This creates an auditable layer of security.
  4. Insert into Outer Envelope — Place the sealed or prepared AF Form 3987, along with the ROI, exhibits, and other required items, into the AF Form 3986 Case File Documents Outer Envelope.
  5. Submit or Store — Forward the completed package to the appropriate office (e.g., S5R or designated records repository) per unit or AFOSI procedures.

Always follow the latest DAFI 71-101 and any local Security Forces or AFOSI supplements for current workflows. Proper use supports compliance with Air Force records management under AFI 33-322 (Records Management and Information Governance Program).

Why Proper Use of AF Form 3987 Matters?

  • Security and Privacy — Sealing the inner envelope limits exposure of sensitive notes to authorized personnel only.
  • Accountability — Helps maintain the evidentiary value of case files and supports audits or reviews.
  • Efficiency — Prevents loss of critical supporting documentation, reducing the need for reconstruction.
  • Compliance — Aligns with Department of the Air Force investigative standards and federal records requirements.

Failure to use these envelopes correctly can lead to misplaced documents, compromised chain of custody, or administrative issues during case reviews.

  • AF Form 3986 — Case File Documents Outer Envelope (larger container for the full case package)
  • AF Form 3985 — Interview Record
  • AF Form 3545 — Often used as part of the Report of Investigation (ROI)
  • Other investigative tools referenced in DAFI 71-101V1

Download AF Form 3987

You can access the official fillable or printable version through Air Force e-Publishing channels. Trusted download links for the physical form and related formats:

For the most current instructions, visit the official Air Force e-Publishing site (e-publishing.af.mil) and search for DAFI 71-101 or related investigative publications. Always verify the latest edition date and any supplements from your unit, AFOSI, or Security Forces leadership.

Best Practices for Air Force Personnel

  • Use these forms only for official case-related printed materials.
  • Label envelopes clearly with case details (without compromising sensitive information on the exterior when not required).
  • Coordinate with your unit’s evidence custodian or records professional for disposition guidance.
  • Digitally supplement physical files where authorized, but maintain printed copies as directed for investigative standards.
  • Stay updated through official channels, as DAF publications evolve (e.g., 2025 updates to DAFI 71-101).

AF Form 3987 may seem like simple administrative paperwork, but it plays a vital role in upholding the professionalism, security, and accountability of Air Force investigations and records management.

For questions specific to your unit or case, consult your Security Forces supervisor, AFOSI detachment, or base records manager. Proper handling of case file documents protects the mission and the rights of all involved.

This guide is for informational purposes based on publicly referenced Air Force publications. Always refer to the most current official Department of the Air Force instructions for authoritative guidance.