Sharia is the moral and religious law of Islam based on the Quran and teachings of Muhammad. It covers both criminal and civil aspects of law, including crimes like theft, highway robbery, adultery, false accusations, drinking, and apostasy. These crimes fall under strict Had punishments if strong evidence exists, such as amputation for theft and stoning for adultery. Lesser crimes and sins are punished under the discretionary Tazir system. The goal of Islamic criminal law is to deter crimes while upholding principles of justice, mercy, and wisdom.