However, the writ may issue to prevent a discretionary power from being exercised with manifest injustice or to prevent an abuse of discretion. People ex rel. Rothmund v. Conlisk (1st Dist. 1975), 34 Ill. App.3d 76, 78, 339 N.E.2d 290; People ex rel. Shell Oil Co. v. City of Chicago (1st Dist. 1972), 9 Ill. App.3d 242, 245-46, 292 N.E.2d 84; Lenert v. Wilson (1st Dist. 1965), 56 Ill. App.2d 325, 332-33, 206 N.E.2d 294. • 2 In the instant case, the trial court considered the affidavits submitted by plaintiff and defendant Chief Jenkins in support of their respective motions for summary judgment.