In direct democracy systems, the recall allows voters to remove or discharge a public official from office by filing a petition bearing a specified number of valid signatures demanding a vote on the official's continued tenure in office. Recall procedures tupically require that the petition be signed by 25 per cent of those who voted in the last election, after which a special election is almost always required. The recall differs from empeachment in that the people, not the legislature, initiate the election and determine the outcome with their votes. It is a purely political and not even a semijudicial process.