The crime is conspiracy. In the way it is being used, it could be used against any defense lawyer. If a lawyer agreed to take on a murderer as a client, consulted with the client to proceed with arguing the case, and enters a 'not guilty' plea to then go to trial, the new rules are saying that lawyer was conspiring with the murderer to evade justice.
In going after the lawyers the way that Arizona is, it is targeted at making defendants radioactive. A good lawyer could make a solid argument of the government engaging in malicious prosecution, so the government is making sure no good lawyers take the case by making a show of criminaly indicting other lawyers who tried to make arguments for these clients.