This is a helpful perspective from Professor Asifa Quraishi-Landes of the University of Wisconsin School of Law:
https://www.washingtonpost.com/opinions/five-myths-about-sharia/2016/06/24/7e3efb7a-31ef-11e6-8758-d58e76e11b12_story.html?utm_term=.1b2bc8b95d5b