SOUTH ROXANA/ROXANA - Lauren Clendenen, a Roxana High School graduate, is serving the South Roxana community in two public safety roles as a full-time South Roxana police officer and a volunteer lieutenant with the South Roxana Fire Department after completing 16 weeks in the police academy at Southwestern Illinois College.Clendenen said she has been a volunteer firefighter with the South Roxana Fire Department for about three years and is now a…