[quote=@Lev]
[@Darkmatter]

What kind of activity does Wikus monitor or involve himself with? 

I'm dragging Audrey deeper into the Districts (or I would like to), so I thought it would be cool for him to run into her via business or whatever?
[/quote]

He's essentially a do everything kind of guy. He's directly under the thumb of the crime bosses so he could end up involved in most things. The menial tasks of actually conducting ground level crime isn't his concern, but pretty much everything else could be. There's reasonable motivate for him to end up anywhere you could think if it involves the Saito family in some way. 

I know the answer is a bit vague but I felt it'd be limiting to just say he does X and Y.