All officers, troopers, and communications officers who are in the classified service as defined by Code Section 45-20-2 may be dismissed from their employment with the department only in accordance with Chapter 20 of Title 45 and the rules and regulations promulgated thereunder. History. — Ga. L. 1937, p. 322, art. 2, § 5; Ga. L. 1949, p. 70, § 7; Ga. L. 1976, p. 465, § 1; Ga. L. 1992, p. 3131, § 5; Ga. L. 1997, p. 880, § 1; Ga. L. 2000, p. 951, § 12-6; Ga. L. 2009, p. 745, § 1/SB 97; Ga. L. 2012, p. 446, § 2-47/HB 642.