Paul Skip Laisure, New York, NY (Steven R. Bernhard and Kendra Hutchinson of counsel), for appellant.

Richard A. Brown, District Attorney, Kew Gardens, NY (John M. Castellano, Johnnette Traill, and Danielle M. O'Boyle of counsel), for respondent.

Appeals by the defendant from two judgments of the Supreme Court, Queens County (Ira H. Margulis, J.), rendered November 6, 2014, and December 15, 2014, respectively, both under indictment No. 1905/10, convicting him of robbery in the first degree, upon a jury verdict, and robbery in the first degree, upon his plea of guilty, and imposing sentences.

Ordered that the judgments are affirmed.

The Supreme Court providently exercised its discretion in denying, after a hearing, the defendant's motion to present certain proposed expert testimony on the topic of false confessions (see People v Bedessie, 19 NY3d 147, 161 [2012]; People v Iqbal, 147 AD3d 782, 782-783 [2017]; People v Kaye, 137 AD3d 938, 940 [2016]). "As a general rule, the admissibility and limits of expert testimony lie primarily in the sound discretion of the trial court" (People v Lee, 96 NY2d 157, 162 [2001]). With regard to expert testimony on the phenomenon of false confessions, in order to be admissible, "the expert's proffer must be relevant to the [particular] defendant and interrogation before the court" (People v Bedessie, 19 NY3d at 161). Here, the defendant failed to establish that his proffered expert testimony was relevant to the specific circumstances of this case (see id.; People v Iqbal, 147 AD3d at 782-783).

Further, the Supreme Court providently exercised its discretion in permitting the prosecution to cross-examine the defendant regarding certain uncharged crimes and to present rebuttal evidence. The defendant testified during his direct testimony to the effect that he involuntarily confessed after a lengthy interrogation to robbing the victim. Contrary to the defendant's contention, his direct testimony "opened the door" for the People to elicit evidence that the interrogation was lengthy because the defendant was also questioned by detectives regarding five other unsolved robberies, in which the defendant either denied involvement or in which the defendant's statements to the detectives were not useful. In addition to explaining the length of the interrogation, the rebuttal evidence was relevant to counter the defendant's claim of coercion (see People v Mateo, 2 NY3d 383, 416-430 [2004]; People v Ward, 106 AD3d 842, 842-843 [2013]). In any event, any error in this regard was harmless (see People v Crimmins, 36 NY2d 230, 241-242 [1975]).

[*2] In light of our determination, the defendant's remaining contention has been rendered academic. Scheinkman, P.J., Mastro, Barros and Connolly, JJ., concur.