The Sullivan County Sheriff’s Office Is Partnering With The Tennessee Highway Safety Office To Educate Parents And Caregivers During Child Passenger Safety Week. In An Effort To Reduce Unnecessary Child Deaths From Improper Safety Seats, The Sheriff’s Office Is Providing Free Car Seat Checks This Week At Every Elementary School In Sullivan County. According To The National Highway Traffic Safety Administration, Car Crashes Are A Leading Cause Of Death For Children One To 13 Years Of Age.