Trying cases in the court of public opinion refers to using the media to influence public support for one side or the other in a court case.

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.

Modern-day criminal investigations commonly employ many modern scientific techniques known collectively as forensic science.

The term murder book refers to the case file of a murder investigation. Typically, murder books include crime scene photographs and sketches, autopsy and forensic reports, transcripts of investigators' notes, and witness interviews. The murder book encapsulates the complete paper trail of a murder investigation, from the time the murder is first reported through the arrest of a suspect.

Indictment Conspiracy, crimes against peace, war crimes, crimes against humanity

Grand juries in the United States are groups of citizens empowered by United States federal or state law to conduct legal proceedings, chiefly investigating potential criminal conduct and determining whether criminal charges should be brought.

A grand jury is a jury—a group of citizens—empowered by law to conduct legal proceedings, investigate potential criminal conduct, and determine whether criminal charges should be brought. A grand jury may subpoena physical evidence or a person to testify. A grand jury is separate from the courts, which do not preside over its functioning