criminal justice

You are an adviser to a newly-elected state legislator with no experience in criminal justice. She has been appointed to the legislature’s Committee on Crime and Criminal Justice and needs an education concerning contemporary issues in law enforcement.
In a memo, explain to her the three levels of law enforcement and tell her how local police and private security personnel have new roles in homeland security.
How must the three levels of law enforcement work together on this mission? Should she press for federal funding for local agencies in doing so? Should local police and private security personnel have roles in intelligence-gathering that may not have a relationship to specific criminal activity?