Investigations are systematic processes used to gather information and uncover facts about a specific issue or event. They can be conducted in various fields, such as law enforcement, science, and journalism. The goal is to analyze evidence, interview witnesses, and review documents to reach a conclusion or solve a problem. In law enforcement, for example, detectives may conduct investigations to solve crimes by collecting evidence and interviewing suspects. In science, researchers perform investigations to test hypotheses and gather data. Overall, investigations play a crucial role in understanding complex situations and making informed decisions.