What are the implications if one or more of the functions fails to exercise these responsibilities?

Write an essay addressing the topic below. Your essay should be 750 to 1,000 words, 5-7 pages (not including cover page and reference page), double-spaced, with a font size of 12 pt. Please be sure to include an introduction with a thesis statement as well as a concluding paragraph to summarize.
In each of the criminal justice systems, describe the roles, duties, and responsibilities of those functions to ensure the rights of the accused are upheld and carried out. What are the implications if one or more of the functions fails to exercise these responsibilities? Use examples (such as case law) to demonstrate where a system failure has led to consequences and consider how society would operate if the Bill of Rights never existed.