N.Y. Civil Practice Law & Rules § 4531: Affidavit of service or posting notice by person unavailable at trial

Rule 4531. Affidavit of service or posting notice by person

unavailable at trial. An affidavit by a person who served, posted or

affixed a notice, showing such service, posting or affixing is prima

facie evidence of the service, posting or affixing if the affiant is

dead, mentally ill or cannot be compelled with due diligence to attend

at the trial.