Investigation is the process of inquiring into a matter through research, follow-up, study, or formal procedure of discovery. The term may refer to any of the following:

• Academic or intellectual investigation aimed at the discovering, interpreting, and revising of knowledge.
• Private investigation undertaken by a private investigator or a detective
• Investigation carried out under official authority by law enforcement personnel
• Criminal investigation:
  • Criminal law
  • Criminal procedure

• Observational studies conducted as medical research in Clinical trials

Academia is a collective term for the scientific and cultural community engaged in higher education and research, taken as a whole. ... “Literati” redirects here. ... This article needs to be cleaned up to conform to a higher standard of quality. ... Interpretation, or interpreting, is an activity that consists of establishing, either simultaneously or consecutively, oral or gestural communications between two or more speakers who are not speaking (or signing) the same language. ... Look up Revision in Wiktionary, the free dictionary. ... This article needs additional references or sources for verification. ... A private investigator, private detective, PI, or private eye, is a person who undertakes investigations, usually for a private citizen or some other entity not involved with a government or police organization. ... Gumshoe redirects here. ... For the band, see The Police. ... The term criminal law, sometimes called penal law, refers to any of various bodies of rules in different jurisdictions whose common characteristic is the potential for unique and often severe impositions as punishment for failure to comply. ... Criminal procedure refers to the legal process for adjudicating claims that someone has violated the criminal law. ... Medical research (or experimental medicine) is basic research and applied research conducted to aid the body of knowledge in the field of medicine. ... In health care, including medicine, a clinical trial (synonyms: clinical studies, research protocols, medical research) is a process in which a medicine or other medical treatment is tested for its safety and effectiveness, often in comparison to existing treatments. ...

See also

• Crime
• Peer review
• Feasibility study

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