Section 207-K*2. Disabilities of policemen and firemen in certain cities

a.
  Notwithstanding  the  provisions of any general, special or local law or
  administrative code to the contrary, but  except  for  the  purposes  of
  sections  two  hundred  seven-a and two hundred seven-c of this article,
  the workers' compensation law  and  the  labor  law,  any  condition  of
  impairment  of  health  caused by diseases of the heart, or by a stroke,
  resulting in total or partial disability or death to a  paid  member  of
  the  uniformed  force  of  a  paid police department or fire department,
  where such paid policemen or firemen are drawn  from  competitive  civil
  service  lists,  who successfully passed a physical examination on entry
  into the service of such respective department, which examination failed
  to reveal any evidence of such condition, shall be presumptive  evidence
  that  it  was  incurred in the performance and discharge of duty, unless
  the contrary be proved by competent evidence.
    b. The provisions of this section  shall  remain  in  full  force  and
  effect  to  and  including  the  thirtieth day of June, nineteen hundred
  seventy-four.
    * NB Expired July 1, 1995 per subdivision 2; see retirement and social
  security law § 480 for expiration
    * NB There are 2 § 207-k's