There are a multitude of stakeholders (i.e., agencies, organizations, businesses, and individuals) that are involved in the investigation of cybercrime. The nature and extent of their involvement depends on the type of cybercrime committed. Stakeholder involvement is also determined by the geographic location of stakeholders and countries' cybercrime laws. Building on Module 4 on Introduction to Digital Forensics, this Module critically examines the processes involved in reporting cybercrime and the stakeholders responsible for investigation cybercrime. Special attention is paid to the obstacles encountered during cybercrime investigations (for information on international cooperation in cybercrime investigations, see Module 7 on International Cooperation against Cybercrime and the Teaching Module Series on Organized Crime, particularly Module 11 on International Cooperation to Combat Transnational Organized Crime) and the role of knowledge management in cybercrime investigations. Module 6 on Practical Aspects of Cybercrime Investigations and Digital Forensics covers the way cybercrime investigations and digital forensics are conducted.