Early history of the criminal theory and its application to crime control i.e., Positivist School vs. Classical School

Discuss/debate with your classmates about the early history of the criminal theory and its application to crime control i.e., Positivist School vs. Classical School, plus gender, class, and race as they relate to crime. Also, discuss if racial profiling is justifiable? Ever? If the answer is yes, discuss how effective the profiling must be to remain justified? If the answer is no, do the events of 9/11 suggest a justification for other forms of ethnic profiling?