Arizona assistant coach Emanuel "Book" Richardson talks with Arizona forward Brandon Ashley, center, and Arizona forward Aaron Gordon (11) during the first half of the No. 2 University of Arizona vs. University of Oregon mens college basketball game on Thursday, Feb. 6, 2014, at McKale Center in Tucson, Ariz. Arizona squeaked out a 67-65 win.
Book Richardson has been arrested on federal bribery and conspiracy charges after the FBI alleged that the Arizona Wildcats' longtime assistant took money from sports agents and paid off recruits to come to Arizona.
The UA has announced an independent investigation into Richardson, and it's likely the NCAA will follow suit.
It's still too early to say what they'll find, and what the NCAA will rule, but history says to expect anything. The governing body's punishments against the UA have historically ranged from minor — a reprimand for holding illegal tryouts — to an order to vacate victories. (Granted, none of those investigations began with FBI probes or arrests.)
Here's a look at the nine biggest investigations into the UA in history, and what went down.

