N.Y. Legislative Law § 2

§ 2. Exemption of members and officers from arrest. A member of the\nlegislature shall be privileged from arrest in a civil action or\nproceeding other than for a forfeiture or breach of trust in public\noffice or employment, while attending upon its session, and for fourteen\ndays before and after each session, or while absent for not more than\nfourteen days during the session with the leave of the house of which he\nis a member.\n An officer of either house shall be privileged from arrest in such a\ncivil action or proceeding while in actual attendance upon the house.\nEither house shall have the power to discharge from arrest any of its\nmembers or officers arrested in violation of his privilege from arrest.\n