This document outlines a course on digital investigations in data-driven journalism. It discusses what constitutes an investigation, including exposing socially important issues, discovering and verifying information. It also addresses what makes an issue of public interest and considers examples. The document then covers national vs public interest, the stages of an investigation, and elements that make a good investigation like evidence, human stories, credibility and effective delivery. It discusses reasons to investigate like shedding light on corruption. Finally, it lists qualities of a good investigative journalist, including being curious, self-organized and resourceful.