Essays / 25 page research proposal on any issue in our criminal justice system - the death penalty [2]

I have to write a minimum of a 25 page research proposal on any issue in our criminal justice system. I have chosen to talk about the death penalty. I have to start broad with my topic, then narrow it down something specific. I am having trouble with narrowing this topic down. I have never wrote this type of a research paper before. I also have to use a minimum of 25 peer reviewed articles with a methods section.

Any ideas on how to narrow down my topic would be greatly appreciated.