The Code of Criminal Procedure has adopted its own criminal procedural model, mixed, in that it exceptionally granted the judge powers and functions of the parties to the proceedings; where the JIP Judge without being the director of the investigation may order the completion of a supplementary investigation indicating the period and the procedures that the prosecutor must perform; also the Judge of Judgment and sentence without being the holder of the burden of proof may order the realization of an inspection or reconstruction and order the performance of new evidence.

The non-applicability of the evidentiary conventions in the preliminary investigation courts of the Judicial District of Huánuco, in the period 2018-2022, is due to the fact that the procedural parties did not propose them in the intermediate stage. Proof of this is that the judges did not approve them or disassociate themselves. It is also due to the fact that judges do not have legal protection to propose or formulate evidentiary conventions in court hearings, since this does not contribute to the principles of economy, speed and procedural efficiency, as long as they send uncontroversial proven facts for debate, which become one more tributary of overload for the oral trial.