(20 ILCS 2610/8.2) (from Ch. 121, par. 307.8b)
Sec. 8.2.
All State Policemen, regardless of rank, shall receive a longevity increment at the start of their 5th, 10th, 15th, 20th and 25th years of service with the Illinois State Police amounting to approximately five percent of a trooper's salary for the year preceding that service anniversary.
(Source: P.A. 83-914.)