OOP: Umbridge's observation of O.W.L.'s

[owlery2003]

No: HPFGUIDX 66224

And that's odd, isn't it? Umbridge has a hard time with the 
Centaurs, is rescued by Dumbledore, gets to recoup in the Infirmary 
and later slinks away? After she's admitted to the Dementor attack 
and after attempting to use an unforgiveable curse on a student!? 
Dolores Jane Umbridge should be in Azkaban instead of running loose! 
I always suspected her of being a Voldy plant. No right-thinking 
Ministry official would have sent Dementors to Little Whinging! 
We've not seen the end of Umbridge. Why was she permitted to get 
away in this fashion?