University of Arizona and Arizona State law and public policy professors have done an excellent job within this paper posted on SSRN of distilling the impact of SB 1070 on Arizona's criminal justice system.
"Our goal is simple: to begin to identify the central issues raised by this legislation. This is, however, no simple task. With all respect to the views of others, in our view those who state that the meaning of the bill is obvious, or that it simply mirrors federal law, either have not read the bill, or do not understand the difficult issues of federalism and criminal law and procedure raised by this text and existing law. The bill creates many new crimes and duties, some of them previously unknown not only in Arizona but in federal or state law. To understand this bill requires the expertise of one half of a law school faculty, since issues arise about both structural and substantive constitutional law, immigration law, criminal law, criminal procedure, state and local government law, and other fields. SB 1070 includes many provisions whose interpretation is open to a range of interpretations."
Click here to download the pdf directly.