Section 140.35. Arrest without a warrant; by person acting other than as a police officer or a peace officer; when and how made

1.  A person may arrest another person  for  an  offense  pursuant  to
  section 140.30 at any hour of any day or night.
    2.    Such  person  must inform the person whom he is arresting of the
  reason for such arrest unless he encounters physical resistance,  flight
  or other factors rendering such procedure impractical.
    3.    In  order  to  effect  such  an arrest, such person may use such
  physical force as is justifiable pursuant to subdivision four of section
  35.30 of the penal law.