Democracy is efficient in the sense that it allows people to have free will and vote for what they believe is right, Democracy also allows the people to have control, which you will not find dictators.
D. Representative democracy
Representative democracy, also known as indirect democracy or representative government, is a type of democracy founded on the principle of elected officials representing a group of people, as opposed to direct democracy. ... In it the power is in the hands of the representatives who are elected by the people.
When you give them premission to. Otherwise they need a warrant.