Section 13-634. Transfer of members of the police force of the board of water supply to the police department of the city of New York

The members of  the police force of the board of water supply  of  the  city,  upon  the
  termination  of  their service on such force by reason of the completion
  of the work for which  they  were  appointed  by  such  board  shall  be
  severally  eligible  for  transfer  to  the position of patrolman in the
  police department of the city upon the written request in each  case  of
  the board, accompanied by the consent, also in writing, of the person to
  be  transferred, and the further consent of the police commissioner. The
  time served by any member of such board of water supply police force who
  has become a member of  such  police  force  of  the  city,  whether  by
  transfer  or as a result of competitive examination and appointment, and
  who is still a member of the police force of the city, shall be included
  and counted  as  service  in  the  police  department  of  the  city  in
  determining   salary   and   eligibility   for  advancement,  promotion,
  retirement and pension as provided in this code, provided, however, that
  no person becoming a member of the police department of the city in  the
  manner herein provided, shall be entitled to participate in the benefits
  of the police pension fund, unless he shall pay into such fund the total
  sum  that  he  would  have  been required to pay in order to participate
  therein had he been a member of such force from the time he entered  the
  service  of  such  board  of water supply, and provided further, that no
  person not a member of the police force of the board of water supply  on
  the  ninth  day  of May, nineteen hundred nineteen shall be eligible for
  transfer to the position of patrolman in the police  department  of  the
  city  in  accordance  with the provisions hereof. These provisions shall
  not be subject to any restriction relative to transfers contained in the
  civil service law or in the rules and regulations of the  civil  service
  commission of the state, or any subdivision thereof.