Why is evidence put into writing during a pretrial military investigation?

In military law, the requirement to reduce evidence to writing during a pretrial investigation serves as a formal, quasi-judicial safeguard. This procedure ensures that the evidence is documented and organized so that the responsible authority—typically the commanding officer or a designated military official—can thoroughly review the facts before deciding whether to remand the accused for trial by court-martial.1

By formalizing the evidence in writing, the military legal system mirrors the rigor of civil committal proceedings or grand jury investigations, ensuring that the decision to proceed is based on a documented assessment rather than arbitrary judgment.1