Answer:
The primary purpose of Southern implementation of Black Codes was to ensure that blacks would remain landless and subservient.
Step-by-step explanation:
Black Codes were restrictive laws first enacted by the states of Mississippi and South Carolina in 1865. These laws were designed to limit the freedom of African Americans and to ensure that even after the abolition of slavery they would still be available as cheap labor force. Black Codes laws obliged many soon-to-be free African Americans to sign one-year labor contracts, and in the case that they would refuse to do so, they would face fines, arrestment and would be possible forced to work without payment.