With the increasing quantity of the government officials, the national public financial expenditure augmented as well since the middle Ming Dynasty, hence reducing the redundant officials became the continuously topic for discussion in the national political life.

However,this system led to the redundant officials selected,which caused corruption of local officials\' administration,and influenced imperial ruling and people\'s life.

In rich and great ancient Rome law, We can note: Some special system, it was different with the strict attention over-detailed formalities ancient times legal system, it looked like one to surge in the Roman law history perpetual flow running water which slow inundated, it was in the Roman law judge system.

Therefore, an exact understanding of the word of praetor should be done according to different period and function and we can translate it to judge, but better as vice-executive.