List of national legal systems
Common law is currently in practice in Ireland, most of the United Kingdom (England and Wales and Northern Ireland), Australia, New Zealand, Bangladesh, India (excluding Goa), Pakistan, South Africa, Canada (excluding Quebec), Hong Kong, the United States (on a state level excluding Louisiana), and many other places. In addition to these countries, several others have adapted the common law system into a mixed system. For example, Nigeria operates largely on a common law system, but incorporates religious law.
Sharia
A 2013 survey based on interviews of 38,000 Muslims, randomly selected from urban and rural parts in 39 countries using area probability designs, by the Pew Forum on Religion and Public Life found that a majority—in some cases "overwhelming" majority—of Muslims in a number of countries support making sharia the law of the land, including Afghanistan (99%), Iraq (91%), Niger (86%), Malaysia (86%), Pakistan (84%), Morocco (83%), Bangladesh (82%), Egypt (74%), Indonesia (72%), Jordan (71%), Uganda (66%), Ethiopia (65%), Mali (63%), Ghana (58%), and Tunisia (56%). In Muslim regions of Southern-Eastern Europe and Central Asia, the support is less than 50%: Russia (42%), Kyrgyzstan (35%), Tajikistan (27%), Kosovo (20%), Albania (12%), Turkey (12%), Kazakhstan (10%), Azerbaijan (8%). Regarding specific averages, in South Asia, Sharia had 84% favorability rating among the respondents; in Southeast Asia 77%; in the Middle-East/North Africa 74%; in Sub-Saharan Africa 64%; in Southern-Eastern Europe 18%; and in Central Asia 12%.