2019 New York Laws
ELN - Election
Article 5 - Registration and Enrollment of Voters
Title 2 - Registration and Enrollment
5-218 - Registration; Challenges.

§  5-218.  Registration;  challenges.  1.  Any  person who applies for
  registration may be challenged  by  any  qualified  voter,  watcher,  or
  inspector  of  election  if  such  person has reason to suspect that the
  applicant is not qualified to be registered to vote.
2. When an applicant is challenged the  person  making  the  challenge
  must  first  state  the  reason  for  the  challenge  and  complete  the
  challenger's part of the challenge form. The board shall then administer
  to such applicant the following oath: "You do solemnly swear (or affirm)
  that you will give true answers to the questions which may be put to you
  to establish your qualifications to register and vote". A member of such
  board shall then read to the challenged  person  the  questions  printed
  upon  the  form  of  the  challenge affidavit which relate to the reason
  given for the challenge, and such other questions on the form as in  its
  discretion  it  may  deem  appropriate, and shall enter in ink, opposite
  each question,  the  answer  thereto  given  by  such  applicant.  After
  answering,   the  applicant  shall  sign  his  name  to  such  challenge
  affidavit. The inspector or member of such board who writes the  answers
  shall   enter   in  the  place  provided  on  the  challenge  affidavit,
  information identifying the person challenged and the name  and  address
  of  the  person  challenging,  and shall sign the certificate at the end
  thereof. The other inspectors present shall also sign  such  certificate
  at the end thereof.
3.  The  applicant  shall  be registered by the board if a majority of
  such board shall be satisfied with the answers of the registrant. If not
  satisfied, they shall  notify  him  of  the  qualifications  which  they
  believe  he  lacks  as a voter, and shall furnish him a duplicate of the
  challenge affidavit as completed. They shall  also  advise  him  of  his
  right to apply to the board of elections for registration.
4.  When  a  person  who  has been challenged is registered, the board
  shall enter in the remarks column the word "Challenged".
5. The state board of elections shall prescribe  forms  for  challenge
  affidavits  for  use  pursuant  hereto,  which  forms  shall elicit such
  information from the applicant as it deems appropriate.