Chapter 19 provides an overview of Turkish law on the collection of digital evidence stored in and outside Turkey. It explains that while cybercrime offence definitions under Turkish law are generally in line with the Cybercrime Convention, Turkey has largely not transposed the criminal procedure and international cooperation sections of the Convention into its domestic law. It delves into the legal framework for collection of digital evidence in Turkey, including investigative measures, mandatory or voluntary cooperation of internet service providers, and administrative search and seizure methods. It analyses the judicial cooperation between Turkish LEAs and their foreign counterparts, and notes the challenges Turkish authorities face in obtaining e-evidence stored in foreign jurisdictions through mutual legal assistance requests. Noting efforts to overcome such challenges, in part through expanding the powers of the Information and Communication Technologies Authority, the chapter calls for a reform of Turkish criminal procedure and international cooperation law with the relevance of Turkey’s human rights obligations and e-evidence in mind.