The same was true in Italy, minus actual democracy. Like I said, I wasn't trying to be critical, just stating that similar systems have existed. If I remember correctly, under Mussolini the upper chamber only represented economic and industrial groups (e.g. coal industry, steel industry, agriculture, etc etc) rather than bodies like the police and military. Indeed, something I would add is that such a system would severely compromise any democracy - there is a reason that the police, judiciary and armed forces are supposed to be 'above politics'. Inolving them would be a recipe for instability during any crisis.