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  2. Criminal investigation - Wikipedia

    en.wikipedia.org/wiki/Criminal_investigation

    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, evidence collection and preservation, and various methods of investigation. [1] Modern-day criminal investigations commonly employ many ...

  3. Forensic science - Wikipedia

    en.wikipedia.org/wiki/Forensic_science

    Forensic science, also known as criminalistics, [ 1 ] is the application of science principles and methods to support legal decision-making in matters of criminal and civil law. During criminal investigation in particular, it is governed by the legal standards of admissible evidence and criminal procedure. It is a broad field utilizing numerous ...

  4. IRS Criminal Investigation - Wikipedia

    en.wikipedia.org/wiki/IRS_Criminal_Investigation

    Internal Revenue Service, Criminal Investigation (IRS-CI) is the United States federal law enforcement agency responsible for investigating potential criminal violations of the U.S. Internal Revenue Code and related financial crimes, such as money laundering, currency transaction violations, tax-related identity theft fraud and terrorist financing that adversely affect tax administration.

  5. Detective - Wikipedia

    en.wikipedia.org/wiki/Detective

    A detective is an investigator, usually a member of a law enforcement agency. They often collect information to solve crimes by talking to witnesses and informants, collecting physical evidence, or searching records in databases. This leads them to arrest criminals and enable them to be convicted in court. [1]

  6. PEACE method of interrogation - Wikipedia

    en.wikipedia.org/wiki/PEACE_method_of_interrogation

    The PEACE method of investigative interviewing is a five stage [1][2] process in which investigators try to build rapport and allow a criminal suspect to provide their account of events uninterrupted, before presenting the suspect with any evidence of inconsistencies or contradictions. It is used to obtain a full account of events from a ...

  7. Criminal intelligence - Wikipedia

    en.wikipedia.org/wiki/Criminal_intelligence

    Criminal intelligence is information compiled, analyzed, and/or disseminated in an effort to anticipate, prevent, or monitor criminal activity. [1] [2] [3] [4]The United States Army Military Police Corps defines criminal intelligence as information gathered or collated, analyzed, recorded/reported and disseminated by law enforcement agencies concerning types of crime, identified criminals and ...

  8. Grand juries in the United States - Wikipedia

    en.wikipedia.org/wiki/Grand_juries_in_the_United...

    Any citizen could bring a matter before a grand jury directly, from a public work that needed repair, to the delinquent conduct of a public official, to a complaint of a crime, and grand juries could conduct their own investigations. In that era most criminal prosecutions were conducted by private parties, either a law enforcement officer, a ...

  9. FBI Criminal Investigative Division - Wikipedia

    en.wikipedia.org/wiki/FBI_Criminal_Investigative...

    The Criminal Investigative Division (CID) is a division within the Criminal, Cyber, Response, and Services Branch of the Federal Bureau of Investigation.The CID is the primary component within the FBI responsible for overseeing FBI investigations of traditional crimes such as narcotics trafficking and violent crime.