Section 120.80. Warrant of arrest; when and how executed

1.  A  warrant of arrest may be executed on any day of the week and at
  any hour of the day or night.
    2.  Unless encountering physical resistance, flight or  other  factors
  rendering  normal  procedure  impractical,  the arresting police officer
  must inform the defendant that a warrant for his arrest for the  offense
  designated  therein has been issued.  Upon request of the defendant, the
  officer must show him the warrant if he has it in  his  possession.  The
  officer need not have the warrant in his possession, and, if he has not,
  he  must  show it to the defendant upon request as soon after the arrest
  as possible.
    3.  In order to effect the arrest, the police  officer  may  use  such
  physical  force as is justifiable pursuant to section 35.30 of the penal
  law.
    4. In order to effect  the  arrest,  the  police  officer  may,  under
  circumstances  and  in  the manner prescribed in this subdivision, enter
  any premises in  which  he  reasonably  believes  the  defendant  to  be
  present; provided, however, that where the premises in which the officer
  reasonably  believes  the  defendant  to be present is the dwelling of a
  third party who is not the subject of the arrest  warrant,  the  officer
  shall  proceed  in  the manner specified in article 690 of this chapter.
  Before such entry, he must give, or  make  reasonable  effort  to  give,
  notice of his authority and purpose to an occupant thereof, unless there
  is reasonable cause to believe that the giving of such notice will:
    (a) Result in the defendant escaping or attempting to escape; or
    (b) Endanger the life or safety of the officer or another person; or
    (c)  Result  in  the  destruction,  damaging  or secretion of material
  evidence.
    5.  If the officer is authorized  to  enter  premises  without  giving
  notice  of  his authority and purpose, or if after giving such notice he
  is not admitted, he may enter  such  premises,  and  by  a  breaking  if
  necessary.