Besides the High Courts and the Courts constituted under any law, other than this Code, there shall be, in every State, the following classes of Criminal Courts, namely:—

   (i)  Courts of Session;

   (ii)  Judicial Magistrates of the first class and, in any metropolitan area, Metropolitan Magistrates;

   (iii)  Judicial Magistrates of the second class; and

   (iv)  Executive Magistrates.