June 11, 2005 -- An NYPD union trustee has been stripped of his title and is under criminal investigation for allegedly cashing delegates' checks at a Nassau County bar and pocketing the cash, officials said yesterday.

Thirteen-year department veteran Philip Repaci, 34, who has been a Patrolmen's Benevolent Association trustee in Brooklyn since 2003, was bounced from the union Tuesday after refusing to explain what happened to checks he was supposed to give delegates, said PBA president Pat Lynch.

The probe began when a delegate complained he hadn't received his salary stipend for his union work after last fall's convention, Lynch said.

Union officials also discovered three other delegates hadn't received their checks from Repaci, who is temporarily assigned to a Housing Police unit.

The NYPD's Internal Affairs Bureau is investigating the alleged scam, sources said, as are Nassau officials because the checks were cashed at a Long Island bar.