I can't remember where that link was but the smoking gun was his father gave him some money that he marked down as "gift" with the prosecutor alleging it should have been "loan" because he paid the money back. Norris claimed the guilty plea was easier because of the mortgage issue he claims it was politically motivated but who knows, but the prosecutor being reprimanded helps him on that point. (Something about e-mails indicating the prosecutor was politically motivated)
In a plea agreement, the mortgage charge was dropped in exchange for a guilty plea of abusing the expense account, which Norris had denied. On March 8, 2004 Norris pled guilty to federal corruption and tax charges.
http://www.baltimoresun.com/news/bal-te.md.norris09mar09,0,5325678.story?coll=bal-home-headlines
At any rate, his prior history indicates he really does know policing and I found statements from his radio show where he suggested to "end the drug war" & other things to show he wouldn't be in favor of zero tolerance policing. With his fugitives division and cold case squads those weren't successfully simply by arbitrary arresting people. Publicly saying something & Ed Norris certainly deserves credit because it seems he is real police usually mayors are interested people who "resign quietly" or have some other job or political promise I don't know the inside scoop but you have the article from the David Simon who knows Ed Norris well enough on a personal level to describe some sort of rift over a difference of strategy. I'm not sure what the real story is but I can't expect a politician to be honest about it on public statements to the media.
If I'm not mistaken Shelia Dixon was convicted of embezzlement herself? Same with Ed Norris I don't know the full details of that either.