More like Savakesque.
Yep. And it isn't unprecedented, either - the Tsarist Okhrana led straight to Dzerzhinski's Cheka, the OGPU, the NKVD, the KGB... The one constant in an evolving police state is, well, the police.
Decentralization of this sort of authority carries with it its own hazards. In Dzerzhinski Lenin had one throat to choke. One may expect to see a certain attrition among the 31 regional bosses, and the command of the two in Tehran will be very jealously watched posts. If this is the typical pattern there are two so that one may watch the other. The Romans found out what happens when there is only one Praetorian Guard.
It doesn't bode well for the Iranian people. This sort of thing chokes economic activity in an already difficult time by diverting a major cut of black market funds to the private coffers of the corrupt, or suppressing it altogether. And the black market is one consistent infrastructure of revolution within all police states, and the police know it.
I don't see it decentralized for very long, frankly. That's just too dangerous. If the rest of the world (i.e. the U.S. in this case) is going to pursue a program of regime change it is within this structure that we are most likely to find a successor to Ahmadinejad. The police know that too.