2017 New York Laws
CVS - Civil Service
Article 5 - Personnel Changes
Title E - Police Advisory Board
83-C - Additional Members on Board.

 83-c. Additional members on board. In addition to the foregoing, the
  following  additional members shall be added to the board depending upon
  the type of merger involved:
(a) Consolidation of two police agencies. The chief of police of  both
  agencies  involved  in the consolidation and the chief executive officer
  of both municipalities involved in the consolidation.
(b) Consolidation of all or a combination of more  than  two  existing
  police departments in the county. In cases where all or a combination of
  existing  police  departments  in  the  county  are  being merged into a
  uniform county or part-county police  department,  then  the  chiefs  of
  police of the departments involved in the merger shall select from among
  themselves  one  member  to represent the group. Similarly all the chief
  executives of the municipalities involved in the merger shall select one
  of their members to represent the group.
(c) Consolidation of all or a combination of more  than  two  existing
  police  departments  in  the  county  and  the  criminal division of the
  sheriff's department. In addition to the members of the board previously
  indicated, there shall be added to the board, the sheriff.
(d) For the purposes of this section, the chief of police  means  that
  person  who  is employed by a municipality on a full-time salaried basis
  for the express purpose of administering a police department and who has
  successfully passed a civil service examination for chief of police, and
  has received such appointment.