how does modav corrupt the game? I've used that for most of my stats, carryweight etc... through half of the game and have not come accross any problems with it. from what I can tell Setav sets the base level of the skill/stat. and modav gives you a boost that is not necessarily permanent its kind of like a boost you would get from equipping an item. Basically I used setav to set the skill to what I want and the number is white in the skill menu. Then you use modav to get a boost. If you don't understand then set a setav a skill to 1 and try to equip something or use something that requires a certain skill level. It won't allow you to use it even if you have modav set to 999 or whatever.
I have the same problem , is there any way to remove the crime? a console command or some way to pay it or get into jail?