A teaching assistant in Rhode Island has been arrested after a small bag of cocaine was allegedly found in a bathroom in the elementary school she works at. Police responded to Chester W. Barrows Elementary School on Thursday, March 12, around 11 a.m. after they received a report regarding the drugs, according to the police report obtained by Us Weekly. Upon their arrival, the school's principal gave officers a clear plastic bag that contained a white powdery substance and a small straw.