State witness is a term used to describe an individual who gives testimony in a legal proceeding on behalf of the prosecution. However, there are several different terms that are used to describe individuals who fulfill a similar role in the judicial system. These might include informant, whistleblower, collaborator, or cooperating witness. These terms all refer to individuals who are willing to provide information to law enforcement in order to help bring justice to a situation. Regardless of the term used, state witnesses play a crucial role in our judicial system by providing valuable information that can help secure convictions and bring criminals to justice.