As used in this chapter, unless the context requires a different meaning:
"Employee" means a state police officer.
"Member" means any person included in the membership of the retirement system as provided in this chapter.
"Normal retirement date" means a member's sixtieth birthday.
"Retirement system" means the State Police Officers' Retirement System.
1966, c. 628, § 51-144; 1972, c. 568; 1973, c. 523; 1974, c. 353; 1975, c. 597; 1984, c. 430; 1990, c. 832.