As used in this title as applied to a grand jury, “required number” means:
(a) Twenty-three in a county having a population exceeding 4,000,000.
(b) Eleven in a county having a population of 20,000 or less, upon the approval of the board of supervisors.
(c) Nineteen in all other counties.
(Amended by Stats. 1994, Ch. 295, Sec. 1. Effective January 1, 1995.)