745 ILCS 10/2-212
The provisions of this Part 2 which define or limit the liability of a public employee in terms of his doing of an act or of his failure to act apply to public employees who function jointly, in conjunction or in collaboration with other public employees as well as to those who function singly.
(from Ch. 85, par. 2-212)
(Source: Laws 1965, p. 2983.)