 The county buildings were evacuated at about 2.30 as authorities worked through the information they had. Once the threat was determined to be less than credible, some employees were allowed to go back inside to gather their belongings. All county offices will be back open this morning at 8 a.m. A 33-year-old South Boardman man was arrested on the tar trail at about 6 p.m. His name has not yet been released pending arraignment.