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

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

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 …

Need an FBI Service or More Information? We protect the American people and uphold the US Constitution. You can report suspicious activities and crime by contacting us 24/7 at tips.fbi.gov.

The initial crime scene response and preliminary investigation serves as the foundation for the entire investigative process, and often lasts unabated for several days or longer depending on …

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.

Look up investigation or investigate in Wiktionary, the free dictionary.

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 …

Aug 29, 2025 · An investigation is a systematic inquiry to uncover facts or information. This structured approach applies to personal and business issues, and is relevant for potential legal …

The Bureau of Investigation is the law enforcement arm of the San Diego County District Attorney’s Office.