the internet age, a large number of websites provide fatwas in response to queries from around the world, in addition to radio shows and satellite television programs offering call-in fatwas. Erroneous and sometimes bizarre fatwas issued by unqualified or eccentric individuals in recent times have sometimes given rise to complaints about a "chaos" in the modern practice of issuing fatwas. There exists no international Islamic authority to settle differences in interpretation of Islamic law. An International Islamic Fiqh Academy was created by the Organisation of Islamic Cooperation, but its legal opinions are not binding. The vast amount of fatwas produced in the modern world attests to the importance of Islamic authenticity to many Muslims. However, there is little research available to indicate to what extent Muslims acknowledge the authority of different muftis or heed their rulings in real life. Role of hisba The classical doctrine of hisba, associated with the Quranic injunction of enjoining good and forbidding wrong, refers to the duty of Muslims to promote moral rectitude and intervene when another Muslim is acting wrongly. Historically, its legal implementation was entrusted to a public official called muhtasib (market inspector), who was charged with preventing fraud, disturbance of public order and infractions against public morality. This office disappeared in the modern era everywhere in the Muslim world, but it was revived in Arabia by the first Saudi state, and later instituted as a government committee responsible for supervising markets and public order. It has been aided by volunteers enforcing attendance of daily prayers, gender segregation in public places, and a conservative notion of hijab. Committee officers were authorized to detain violators before a 2016 reform. With the rising international influence of Wahhabism, the conception of hisba as an individual obligation to police religious observance has become more widespread, which led to the appearance of activists around the world who urge fellow Muslims to observe Islamic rituals, dress code, and other aspects of Sharia. In Iran, hisba was enshrined in the constitution after the 1979 Revolution as a "universal and reciprocal duty", incumbent upon both the government and the people. Its implementation has been carried out by official committees as well as volunteer forces (basij). Elsewhere, policing of various interpretations of Sharia-based public morality has been carried out by the Kano State Hisbah Corps in the Nigerian state of Kano, by Wilayatul Hisbah in the Aceh province of Indonesia, by the