The plaintiff must establish, prima facie, that the defendant breached a duty owed to the plaintiff and that the defendant's negligence was a proximate cause of the alleged injuries. The plaintiff is not required to establish a lack of comparative negligence. However, the issue of the plaintiff's comparative negligence may be decided on a summary judgment motion where the plaintiff moves to dismiss the defendant's affirmative defense of comparative negligence.
Balladares v. City of New York, NY Slip Op 08549 (2d Dep't November 27, 2019)
Here is the decision.