New York Laws
Article 18 - Provisions Generally Applicable to Public Retirement Systems
809 - Effect and Rebuttal of Certain Medical Presumptions Pertaining to Diseases of the Heart.

(1) that the member sustained an accident or other incident related to
the performance and discharge of duty; or
(2) that notice was provided thereof.
c. Notwithstanding any other provision of law to the contrary, the
presumptions referred to in subdivision a of this section may be
rebutted only by competent evidence that the disability is not the
natural and proximate result of the performance and discharge of duty.

Structure New York Laws