The meaning of INVESTIGATION is the action or process of investigating : detailed examination : study, research. How to use investigation in a sentence.

Definition of investigation noun from the Oxford Advanced Learner's Dictionary. an official examination of the facts about a situation, crime, etc. The president has promised a full investigation. The authorities …

What does investigation mean? An investigation is a thorough search for facts, especially those that are hidden or need to be sorted out in a complex situation. The goal of an investigation is usually to …

INVESTIGATION definition: 1. the act or process of examining a crime, problem, statement, etc. carefully, especially to…. Learn more.

An investigation is a systematic, minute, and thorough attempt to learn the facts about something complex or hidden; it is often formal and official: an investigation of a bank failure.

Nov 10, 2025 · investigation (countable and uncountable, plural investigations) The act of investigating; the process of inquiring into or following up; research, especially patient or thorough inquiry or …

Working closely with the Patrol Division and the Special Operations Division, the Criminal Investigation Division performs proactive law enforcement activities, follow-up criminal investigations, crimes …

If something has gone missing, conduct an investigation to find it. To do this, seek out details associated with its disappearance, asking questions and gathering evidence in order to find out what happened …

investigation definition: careful process to find out facts or information. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "police …

Criminal investigation is an applied science that involves the study of facts that are then used to inform criminal trials. A complete criminal investigation can include searching, interviews, interrogations, …