Contestability
Philip Pettit, On the People's Terms (2012)Anyone subject to a decision must have a real route to challenge it — to inspect the grounds it was made on, to contest the outcome, and to have that challenge answered. Legitimacy is not settled once by an election or an act of consent; it is held open by that route staying available. The test of a free system is not that its rulers are kind, but that their decisions can be contested by the people they affect.
Non-domination
Philip Pettit, Republicanism (1997)Freedom here is not the absence of interference. You are unfree if someone holds unchecked power over you — even if they never misuse it and mean well. A benevolent master is still a master, and so is an authority whose workings you cannot see. Legitimacy requires that power be checked, not merely well-intentioned.
Public decision record
Common-law practiceRulings on challenges are written down, published and citable, so the system's interpretation of its own rules accumulates in the open, where it can be studied, invoked and criticized. The record is what makes the system predictable as well as legitimate: nothing is settled in private, and every decision leaves its reasoning behind it.