(a) The attorney general has jurisdiction to prosecute and shall represent the state in the prosecution of a criminal offense prescribed by the election laws of this state as provided by Subchapter E, Chapter 402, Government Code.
(b) The attorney general may appear before a grand jury in connection with a criminal offense the attorney general is authorized to prosecute under Subsection (a).
(c) The authority to prosecute prescribed by this subchapter does not affect the authority derived from other law to prosecute the same offenses.