What is CJ?
Criminal Justice or aka Criminal Justice Technology.
There are numerous classes taught.
1. Introduction to Criminal Justice
2. Juvenile Justice or Juvenile Delinquency
3. Criminology
4. Criminal Theory
When an Instructor teaches at the Community College level, these are known as pre-requisite classes to higher levels at the University. The honor students are allowed to take these in high school to get a jump on their college education.
However, some principals are bad to put their bad guys in those classes...causing a real problem with the curriculum. Taxpayers pay for this loss, because those grants are supposed to help the poorer, and more talented students get some of their college without costs.
I hope that answers your question.