[ Teachers and admins can shutdown ]
Identity=unix-group:admins;unix-group:teachers;unix-group:admin;unix-group:llxadmin
Action=org.freedesktop.consolekit.system.stop-multiple-users
ResultActive=yes

[ Teachers and admins can restart ]
Identity=unix-group:admins;unix-group:teachers;unix-group:admin;unix-group:llxadmin
Action=org.freedesktop.consolekit.system.restart-multiple-users
ResultActive=yes