Robust institutions are an essential safeguard against the arbitrary exercise of power.

It meant legal rationality and efficiency, both of which were modern improvements on the arbitrary exercise of power.

The unlawful imprisonment of the claimant was not merely unconstitutional but an arbitrary exercise of executive power which was outrageous.

Both measures were meant to restrict the perceived arbitrary exercise of executive authority.

Parliament included these safeguards to check the arbitrary exercise of power by the armed forces.