Section 450. Definitions

For  the purposes of this article: (1) the term
  "correction officer" shall mean members of the New York state and  local
  employees'  retirement  system  who  are  in a plan limited to uniformed
  personnel in institutions under the jurisdiction of  the  department  of
  correctional  services  or members of such system who are also in titles
  defined in subdivision i of section  eighty-nine  of  this  chapter  and
  correction  members  of  the New York city employees' retirement system;
  (2) the term "police officer or firefighter" shall mean members  of  the
  New York state and local police and fire retirement system, the New York
  city  police  pension  fund, New York city fire department pension fund,
  and housing police members and transit police members of  the  New  York
  city  employees'  retirement system; (3) the term "sanitation man" shall
  mean sanitation members of  the  New  York  city  employees'  retirement
  system;  and  (4)  the term "investigator member" shall mean members who
  are  police  officers  as  defined  in  paragraph  (g)  of   subdivision
  thirty-four of section 1.20 of the criminal procedure law.