N.Y. Comp. Codes R. & Regs. tit. 9, § 4106.3
Any racing official, track official, owner or driver of a horse may call for information concerning the identity or eligibility of any horse competing at a licensed harness race track, and may demand an opportunity to examine such horse with a view to establish identity or eligibility. No owner or party controlling such horse may refuse to afford such information, or to allow such examination. No person shall demand identification of a horse without cause or to embarrass a race.