Detective (full name: detective, English: detective) is a profession responsible for investigating cases. Investigator refers to the investigator in charge of the investigation, which can be a criminal policeman or a private detective. The former is the police, responsible for investigating and detecting criminal cases. The latter is to investigate extramarital affairs, find people and find secrets for employers through private entrustment, including private entrustment to solve cases.
Quite a policeman, please study hard and be admitted to the police academy. If you want to be a private detective, you should study hard.
You just graduated from junior high school and barely got out of illiteracy. How did you become a detective?