N.Y. Criminal Procedure Law § 245.60: Continuing duty to disclose

§ 245.60 Continuing duty to disclose.

If either the prosecution or the defendant subsequently learns of

additional material or information which it would have been under a duty

to disclose pursuant to any provisions of this article had it known of

it at the time of a previous discovery obligation or discovery order, it

shall expeditiously notify the other party and disclose the additional

material and information as required for initial discovery under this

article. This section also requires expeditious disclosure by the

prosecution of material or information that became relevant to the case

or discoverable based on reciprocal discovery received from the

defendant pursuant to subdivision four of section 245.20 of this

article.