[quote=The Gingerbread Man]
Do the Moderators have to be willing participants in testing or is it a draft? I'm thinking of an artist character that's sort of messing around with what sort of effects music can have on the world now that data is physical. I would not imagine that character would be good at, or even want to be, a Moderator. The former is good for the setting cause of B-List but I'm not sure what his/her motivation would be to become a viral cop.
[/quote]

Willing participants. The Moderators are a police force, not a military. 
You'd apply in the same way you'd apply for MI5, where you submit your application to the academy and just never make mention of it to anybody. After graduation, you'd then be distributed to another city where you were totally anonymous to serve out your duties.