The SUV driver who struck a Putnam County Sheriff's Investigator out directing traffic this weekend has been charged.  The Investigator was transported to Danbury Hospital by ambulance for treatment of serious, but non-life threatening injuries.  Carmel Police issued the driver three summons for Speeding, Failure to Exercise Due Care When Approaching an Emergency Vehicle and Disobeying a Lawful Order of a Police Office.  The name of the driver was not immediately released.