In the research of "Efficiency and law enforcement of police in three southern provinces (สตช. HCE.)" divide the data collection process is 3 phase. The phase 1 has research sub project 1 2 part and in the research project 2 sub 3 and phase 3 has research sub project 4-6 along the way. To guide the law enforcement according to the principle of ธรรมภิบาล. And increase the efficiency of the police in three southern provinces (สตช. HCE.) also helps make people and the law enforcement. The knowledge gained from this research. To use in everyday life and behave according to the law correctly. As well as the access to the services of the justice department can equal.