§ 363-ff. Firefighter certain impairments of health; presumption.
Notwithstanding any other provisions of this chapter to the contrary,
any condition of impairment of health caused by Parkinson's Disease,
resulting in total or partial disability or death to a paid firefighter,
who successfully passed a physical examination on entry into firefighter
service, which examination failed to reveal any evidence of such
condition, shall be presumptive evidence that, unless the contrary be
proven by competent evidence, such disability or death (a) was caused by
the natural and proximate result of an accident, not caused by such
firefighter's own willful negligence, and (b) was sustained in the
performance and discharge of duty.