The institution supervises the conformity of the laws of the Riigikogu and international agreements, decrees of the President, and regulations of the government, ministers and local governments, with the constitution and laws. Since the office was re-established in 1993, the Chancellor of Justice has made several hundred requests for bringing various legislative acts into conformity with the Constitution. In most cases the requests were complied with. Chancellors who finds that a legal act does not conform with the constitution or other laws will make a proposition to change the act within 20 days. If a correction is not made, the Chancellor will make a referral to the
Supreme Court to declare the act or some of its provisions void. The Chancellor of Justice may also submit his opinion to the
Supreme Court in constitutional review court proceedings, or initiate disciplinary proceedings with regard to judges. The institution, which already had the function of inspecting places of detention, has served since 2007 as Estonia's national preventive mechanism under the
Optional Protocol to the Convention Against Torture. The function of
ombudsman was entrusted to the Chancellor of Justice in 1999. In that role the Chancellor of Justice monitors whether state agencies or officials comply with people's fundamental rights and freedoms and with the principles of good governance, and addresses complaints of maladministration. In 2004 the ombudsman functions expanded to cover local governments, legal persons in public law and private persons who exercise public functions. The Chancellor of Justice can carry out conciliation proceedings when it is alleged that discrimination has occurred on the grounds of sex, race, nationality, colour, language, origin, religious or other conviction, property or social status, age, disability, sexual orientation or other grounds specified in law. ==List of chancellors of justice==