Final answer:
The district attorney or prosecutor is the one with complete control over criminal prosecutions in their district, making prosecutorial decisions under the supervision of the attorney general.
Step-by-step explanation:
The district attorney (or prosecutor) has complete control of every criminal prosecution instituted or pending in his or her judicial district, making decisions on whom, when, and how to prosecute each case with the supervision of the attorney general. The prosecutor plays a critical role in the criminal justice system, carrying the responsibility of presenting the case against the accused in trial courts with general jurisdictions. In all criminal prosecutions, the accused has constitutional rights, including the right to a speedy and public trial by an impartial jury, the right to be informed of the accusations, the right to confront witnesses, and to have the Assistance of Counsel for defense as stated by the Sixth Amendment.