The general statutes on courts of general sessions are found in title 16, chapter 15 of Tennessee Code Annotated.  The purpose of this general law is to create a statewide system of general sessions courts, but T.C.A. §16-15-501(c) expressly provides that counties may create general sessions courts by private act, giving them both the jurisdiction and powers conferred by general law and such further jurisdiction and power as each county may require.