(KMOV) -- Police say a St. Louis County sfficer was struck in the face by a man on the Metrolink after trying to check the validation of his ticket.
Earnest Moore, 35, was charged with third-degree assault.
According to documents, Moore punched a MetroLink police officer who tried to confront him about his unvalidated ticket.
Police say Moore became aggressive and threatened to physcially assault the officers. He then struck one of the officers in the face, according to police.