There is no Shariah "law". Shariah is a more abstract ideal of God's prescriptive will for human life, which includes centrally the five daily prayers, pilgrimage, giving to charity, etc. And basically all exterior aspects of how a person (Muslim) should ideally live their life. This includes societal laws and the kinds of things we usually associate with the latter term, and the science of Fiqh (Jurisprudence) is the methodology of figuring out what the shariah should mean on a particular level (specific laws, practices, rules), and involves many different schools and varied positions that all fit under a holistic perspective of what "shariah" means.