N.Y. Civil Rights Law § 25: Witness exempt from arrest

§ 25. Witness exempt from arrest. A person duly and in good faith

subpoenaed or ordered to attend, for the purpose of being examined, in a

case where his attendance may lawfully be enforced by attachment or by

commitment, is privileged from arrest in a civil action or special

proceeding, while going to, remaining at, and returning from, the place

where he is required to attend. An arrest, made contrary to the

provisions of this section, is absolutely void and is a contempt of the

court, if any, from which the subpoena was issued, or by which the

witness was directed to attend.