discretion in the CJ system, law homework help

Discussion:

You have an assortment of readings this week that are related to several topics. Based on those readings and other research that you may need to conduct, create a New Thread and answer the following items in your own words:

Define discretion and then discuss where it is found (applied) in the CJ system.
Discuss the necessity of discretion in the CJ system, along with problems that are associated with it.
Briefly discuss some of the highlights & history of policing in the United States.
Define forensic science and then provide an example (a real case) of how it has been used in recent times to solve a crime or help with a conviction.

Number your responses and cite your sources.