Doctor of Law or Doctor of Laws is a degree in law. The application of the term varies from country to country and includes degrees such as the Doctor of Juridical Science (J.S.D. or S.J.D), Doctor of Philosophy (Ph.D.), Juris Doctor (J.D.), and Legum Doctor (LL.D.).
The National Association of Legal Professionals states that the S.J.D./D.J.S. is "the most advanced or terminal law degree that would follow the earning of the LL.M. and J.D. degrees." It typically requires three to five years to complete and requires an advanced study in law as a scientific discipline and a dissertation, which serves as an original contribution to the scholarly field of law.
As with most other countries, in the United States, the Legum Doctor (LL.D.), also colloquially known in English as Doctorate of Laws, is granted only as an honorary degree.