exclusionary rule

Must understand the United States criminal justice system and the US constitution to be able to answer this. a.What is the history of the exclusionary rule? b. Give me the pros and cons of having the exclusionary rule. In other words should we have it? Give me both sides of the argument.

I have 3 more papers that need to be done in the next 2 weeks. Impress me with this and Ill give you more work to do.