According to the General Clauses Act-1897 enacted in 1896 , the magistrate is the one who conducts the proceedings in accordance with the criminal law. (Depending on the exercise of power , the magistrate is divided into three classes , first class magistrate , second class magistrate and third class magistrate . Each of them has the powers of a first class magistrate. In addition to these, in every district outside the metropolitan area , a few more magistrates of first class , second class or third class are appointed. Exercises all the powers of the District Magistrate. The District Magistrate may also distribute the functions among the subordinate Magistrates. Remain in force. Such a magistrate is called Upazila / Thana Magistrate. He can take cognizance of any crime committed in any part of that police station. The government may also give additional powers to any magistrate. Chief Metropolitan Magistrates , Additional Chief Metropolitan Magistrates and Metropolitan Magistrates are appointed to exercise the powers of a first class magistrate in such area or any part of it within the metropolitan area . All other metropolitan magistrates, including the Additional Chief Metropolitan Magistrate, are subordinate to the Chief Metropolitan Magistrate, and he distributes the responsibilities among the subordinate magistrates.)