There is no reason why trained forum staff cannot moderate outside of their "assigned" forums. Reports and other complaints are reviewed by active staff and decisions are made as a group.
ONCE UPON A TIME it was frowned upon because of the fact that users didn't like "outsiders" (as is evidenced here), but SDN has grown too big to rely on just 1 or 2 busy attending physicians (who might want to have a life outside of work and SDN) moderating an active forum. This has been policy for many years. We ask new staff to tread lightly and to review proposed actions with more senior staff, but there is no reason why other "non-EM" staff cannot moderate here.
Our wonderful
@Dr.McNinja has reviewed the activities of the other moderator and found them appropriate and even appreciated by him.