Gujarat High Court Criminal Manual (subordinate court practice), 1977
After recording the confession statement of an accused and the statement of a witness/victim under Section 164 of the Criminal Procedure Code, the Magistrate shall arrange to take two photocopies of the same under his direct supervision and certify the same as true copies. The confession statement in original shall be sent in a sealed cover to the jurisdictional Court through a special messenger or by Registered Post with Acknowledgement Due. One certified copy of the confession statement shall be immediately furnished to the Investigation Officer free of cost with a specific direction to use it only for the purpose of investigation and not to make its contents public until the instigation is completed and final report filed. The other certified copy of the confession statement shall be kept in a sealed cover in safe custody of the Magistrate.