To what extent does the Law of Moses still apply?

> **Matthew 5:17-18 (KJV) ** > **17** Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil. **18** For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in no wise pass from the law, till all be fulfilled. As I understand it, the Law of Moses is fulfilled in Christ. We don't make sacrifices anymore, and many other of the finer points in the Pentateuch are no longer preached. Yet, I still see people reference these books for doctrine (for example the 10 Commandments). How much of the Law of Moses still applies?