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Fifty countries around the world regulated women's religious attire in 2012 and 2013.
The Pew Research Centre found that in 2013, 12 of those countries had a law requiring women to wear particular dress, while 39 had laws limiting attire.
Four countries in the Middle East and North Africa had laws requiring religious dress - Iraq, Libya, Saudi Arabia and Sudan.
This was also the case for Somalia and for six countries in Asia and the Pacific - Afghanistan, Bangladesh, Brunei, Indonesia, Iran and Malaysia.
Russia bans women from wearing headscarves, hijabs or niqabs in Stavropol, but has laws requiring hijabs in all public buildings in Chechnya.
More:A map of all the countries where women are banned from wearing the veil