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.

The New York State trooper who claimed he was shot during a traffic stop on Long Island last week was suspended without pay — as officials probe whether he lied about the incident, authorities said. Police spent hours searching Trooper Thomas Mascia’s home in West Hempstead on Monday after launching an internal investigation into his account of the Oct.