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.

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.

New York State Police and the Nassau County DA say they have launched an investigation into the credibility of a New York state trooper's report of being shot last week while on patrol. CBS News New York's Carolyn Gusoff reports.

A New York State Police trooper who claimed he was shot on a roadway in the region has been sidelined amid doubts about his story. On Long Island, trooper Thomas Mascia, age 27, was suspended without pay and stripped of his agency-issued service weapon,