According to Religion News Blog published by Apologetics Index:
The Sharia (Islamic law) specifies the obligatory acts (fardh), the omission of which constitutes sin, and forbidden acts (haram), the practice of which constitutes sins. Everything else, not derived from these principles, are said to be permissable (mubah).
Throughout the world, Sharia has led — and still leads – to human rights violations — including cruel and unusual punishments (e.g. death penalty by stoning, hanging, or beheading. Amputations of hands and/or feet. Public executions, and etcetera).
Islamism is an ideology in Islam that wants to use the Sharia to its full extent, meaning that secular forms of governments and institutions are considered foreign to a true Muslim society.
By its very nature, Islam makes it extremely difficult for Muslims to integrate. Islam means submission, and the Quran makes it clear that Muslims expect non-Muslims to submit to Islam.
Therefore, Sharia has no place in a modern, free and civilized society.