User blog comment:Dopp/Community Central content and policies: discuss/@comment-1656630-20110529074151/@comment-2093602-20110601174202

I wouldn't be too quick with taking away Admin rights like that. Investigation is the most important thing you should do. Discussing with the other Admins and wikia staff members would also be a good idea. Take an Admin's rights away too soon and you'll get more than just the Admin to be mad at you ;)

Intervening is good and all, but should only be done at the very end when no other things are possible.

Also, a helper has more rights than bureaucrats, so yes they can take away bureaucrat rights.