In 2017 the world population is about 7.3 billion people, Muslims (Muslim) is 1.6 billion people. Following Christianity, it is the second largest religion in the world.
Muslims are often found in ASEAN (Southeast Asian countries), while Malaysia, Singapore and Indonesia are also mixed with nonhalals, Halal is regarded as common sense.
In Malaysia we operate the Islamic Development Agency (JAKIM) of the Malaysian Federal Government with Halal's certification as the country. Singapore is a nationally non-Muslim country, but Halal is penetrating to attract tourists, and the Singapore Islamic Council (MUIS) is certifying. About 90% of the people in Indonesia are Muslims, there is Indonesia Urama Council (LPPOM - MUI).
Also in the Middle East (United Arab Emirates UEA) there is a certification body called the Federal Institute of Standards and Measurement (ESMA).

Halal standards are set for each country, and strict investigation and standards are set up to protect Hallar properly and live. There are various environments such as Muslims taught Halal since birth, Muslims of countries mixed with people who are not Muslims.