New York State Police have launched an investigation into a trooper who said he was shot and wounded while trying to help a motorist on a Long Island highway.

Days after the New York State Police lauded one of its troopers as a hero, they have launched a criminal probe into his claim that he was shot and wounded during a traffic stop on a Long Island highway.

Authorities have launched a criminal investigation, along with their internal one, in the case of a now-suspended New York State trooper who said he was shot by a suspect on Long Island's Southern State Parkway last week.

New York State Police have launched a criminal probe into a trooper who claimed he was shot and wounded by an unknown gunman on a Long Island highway last week.