Emeritus at Harvard Law School (a chair once held by Joseph Story), he was first appointed to the HLS faculty in 1965 and became a full professor in 1968.
Weinreb received bachelor's degrees from Dartmouth College (1957) and Oxford University (1959; M.A., 1963) before taking his LL.B.
He has spent several semesters as a visiting professor at Fordham Law School.
Prior to beginning his teaching career, Lloyd Weinreb served as a clerk for John Marshall Harlan II of the United States Supreme Court, and then as a criminal prosecutor in Washington, D.C. His research interests included criminal law, criminal procedure, intellectual property, and legal and political philosophy.
[2] The Harvard Law Record ranked him among the 'ten professors whose classes you won't want to miss'.