Mine

on *:TEXT:!tb*:#: {
  if ($nick ishop $chan) && (($2 !ishop $chan) || ($2 !isop $chan) && (($me ishop $chan) || ($me isop $chan)) {
    /ban -ku $+ $calc($3*60) $chan $2 $4-
      }
  if ($nick isop $chan) {
if (($2 !isop $chan) || ($2 !ishop $chan))
    /ban -ku $+ $calc($3*60)
  }
  if (($nick !ishop $chan) || ($nick !isop $chan)) {
          /notice $nick Command ignored, must be Half-op
  }
}