How does an ordinary person become a special police officer?

Special police are mainly divided into military/police/special police and public/security/special police. First of all, the army/police/special police must meet the basic requirements of being a soldier (for example, they must be at least 8 years old and have graduated from high school), and there must be a recruitment quota for internal medicine/medicine/army/police (other police types/police types do not have it) in your domicile, and then pass the medical examination and political review. It may depend on whether there is a chance to be selected as a special/police after enlisting, and then we will talk about the retired personnel of special forces such as public security/public security/special/police or army/police/special/police, liberation/army/reconnaissance/police/soldiers, and become public security/public security/special/police after examination, or choose to work from ordinary/police/police and want to become an ordinary police/policeman.