attorneys may not even have personal knowledge of the events), a witness subject to a subpoena
ad testificandum cannot raise an issue of privilege until he has actually appeared and been questioned
(Matter of Hirschfield v Craig, 239 NY 98 ;
Matter ofFahy v Commission to Investigate Allegations of Police Corruption & City’s Anti-Corruption Procedures, 65 Mise 2d 781, affd 36 AD2d 802 ;
Matter of Marius v Leonardo La Monica, Inc., 115 Mise 2d 12;
City of Albany v Albany Professional Permanent Firefighters Assn., 66 Mise 2d 822; 2A Weinstein-Korn-Miller, NY Civ Prac, par 2304.06). Since the court should not anticipate potential lines of questioning, the power to issue the subpoena
ad testificandum is absolute and unlimited
(Matter of Hirschfield v Craig, supra) and the motion to quash was properly denied. Whether the Sprafkins should be disqualified as attorneys for the plaintiffs under the advocate-witness rule is yet another question (see, generally, Note, The Advocate-Witness rule: If Z, Then X. But Why?, 52 NYU L Rev 1365 ). When an attorney is called as a witness for the adverse party, he should be disqualified as counsel if his testimony may be prejudicial to his own client (Code of Professional Responsibility DR 5-102;
People v Paperno, 54 NY2d 294 ). In evaluating the insurers’ claim that the Sprafkins’ testimony will be prejudicial to their own clients, we are mindful of the potential for abuse inherent in the disqualification rule and that disqualification motions have become increasingly popular tools of the litigation process
(Allegaert v Perot, 565 F2d 246 ;
Rice v Baron, 456 F Supp 1361 ). Certainly, the delay in seeking disqualification reflects adversely on the good faith of the instant insurers (see
People v Paperno, supra). On the basis of the hearing record, we conclude that the attorneys’ projected testimony has not been shown to be sufficiently adverse to the factual assertions or account of events offered on behalf of the plaintiffs (see
Freeman v Kulicke & Soffalnds., 449 F Supp 974 , affd 591 F2d 1334 ;
Rice v Baron, supra). Accordingly, since defendants did not meet their burden of establishing the necessary prejudice, the cross motions to disqualify counsel should have been denied. Damiani, J. P., Lazer, Gulotta and Bracken, JJ., concur.