During which step is the legal complaint formally filed?

The legal complaint is formally filed at the District Attorney's (D.A.'s) conference. This step is crucial because it's when the prosecutor reviews the evidence and decides whether to bring charges against a suspect. It involves presenting the facts of the case and any supporting documentation, including witness statements and physical evidence, to ensure that there is sufficient information to proceed with prosecution.

Filing the complaint at this stage allows for a formal process to begin, which outlines the charges against the accused and initiates the legal proceedings. This is distinct and separate from other steps like report writing, arraignment, or interrogation, where the focus may lie on gathering evidence or preparing for court rather than filing formal charges.