The objective of this convention, signed on March 18, 1970, is to provide a uniform and effective legal framework for the collection of evidence abroad in civil and commercial proceedings between contracting states. Among the main mechanisms established are letters rogatory, which allow a foreign court to forward a formal request for the taking of evidence directly to the competent authority designated by another contracting state. In particular cases, the convention also governs the direct taking of evidence by diplomatic or consular authorities of a contracting state, with the consent of the host country. By ratifying this treaty, Turkey and Italy strengthen their judicial cooperation, promoting the protection of parties and their right to defense.

https://www.hcch.net/en/instruments/conventions/full-text/?cid=82