Final answer:
Restatements of law summarize legal principles and help interpret existing laws without creating or modifying them, often used in common law for clarity.
Step-by-step explanation:
Restatements of law are primarily statements that summarize the principles of law. They serve to clarify, simplify, and otherwise organize legal principles to facilitate better understanding for legal professionals, educators, and students. Restatements do not modify existing laws, create new laws, or have the force of law themselves. However, they can be influential in their interpretation of existing laws.
Such restatements are often used by courts to understand how the law has been applied in previous cases, particularly in the area of common law, which is built on legal precedents established through judicial opinions or decisions. This means that restatements work within the existing legal framework to elucidate and arrange laws that are already in place.