Power always pretends to be a dangerous thing only when it is exercised; juridically it is a matter of one’s liberty. Liberty begins where duty ends and it is the residue left untouched by Judges & Legislators on a matter. So there are mainly two types of liberties: 1.Which is recognized by law, for e.g. 'Parliamentary privileges’ in debates & ‘judicial privileges’, both connote the absence of a duty not to utter defamatory statements. Secondly: 2.which is not recognized by the law. So the limit over the power is needed i.e. Rule of law restraining such powers. Everyone should exercise his powers by limiting himself in the purview of “rule of law”.
Available at: http://works.bepress.com/rajesh_deoli/1/