Moderators should not be allowed to sanction a member for an offense directed at or targeting the moderator (e.g. ModeratorJoe should not be able to warn/ban/whatever UserX because Joe feels UserX was harassing ModeratorJoe). We are all human, and sometimes take things too personally. A policy such as this, that would require a moderator to get a "second opinion" of sorts, would prevent retaliatory sanctions.

Maybe this is an existing policy, but it stems from an "incident" that I had with a moderator earlier.