Actually within the state of TN Dept. of Education, Forensic Science is a part of Career & Technical Education (CTE) which is the division of education in which TC taught. Teachers who teach CTE classes may or may not have degrees in education (apparently TC did not); however, they must have coursework and a certain occupational licensure. For instance, I know an RN who teaches CTE classes in the health sciences division and she also teaches a Forensic Science class as a part of the CTE program of study.
I read where TC taught "Forensics", and this would be Forensic Science within the CTE program at his high school.
Hope this made sense as it may sound confusing the way I wrote it.