Answers to IAD Corruption? (UPDATE)

This appeared in the comments a few days back and we've been trying to verify some parts of it:

• Why Is there a current internal reviews of IAD closed cases? Why does this review of these closed case involve several Sgts who worked on these cases while assigned to IAD? How did these cases become closed with findings of Unfounded or Not Sustained when witnesses and evidence were present that were never addressed? How and why did these involved Sgts suddenly become promoted up and out of IAD?
  
  Why is there a new IAD Chief and deputy Chief of IAD being promoted? Why is one of these new IAD chiefs a former Lieutenant that was assigned to IAD during the time of these improperly closed IAD cases? Why is this new chief being brought back into IAD? To help or hinder the reviews of these cases? Why is IAD calling in these promoted Captains and Lieutenants to review these closed cases? Why are these former investigators of IAD refusing to cooperate with this review of closed cases?
  
  Answers?
  
  These cases were properly initiated by citizens and CPD, during investigations by IAD information of damaging pattern of misconduct was discovered! But the current Chief of IAD Juan Rivera put stops to investigations, telling these Sgts it was in best interest of Department to close the cases! For this quick closing of cases these Sgts all were rewarded by getting merit promotions or grade adjustments on tests! And transferred out of IAD!
  
  Only problem is that evidence and witnesses are still available and new Mayor wants accountability for not investigating these cases originally! Looks like truth is leaking out and who were involved will be the ones retiring quickly?
  
  This review of cases is more then 35 deep so it is showing how IAD was protecting CPD command staff from bad investigations! A pattern of protection that was initiated from IAD and Command staff? And those who keep mouths shut get promoted?

This would explain a portion of the IAD promotions that are occurring at a statistically impossible rate.

UPDATE: We're aware Rivera is long gone. We're assuming the writer meant "But [then] Chief of IAD Juan Rivera..." We have no way of knowing, but we've been getting tips and clues from HQ sources that hint something is up. Lori has a lot of cleaning up to do if she wants to get hold of the reins. Otherwise, the tail is still wagging the dog and the corruption that IAD is burying stays buried. IAD is in place to cover up connected corruption, not root it out.