Trial by combat was a method of Germanic law to settle accusations in the absence of witnesses or a confession in which two parties in dispute fought in single combat; the winner of the fight was proclaimed to be right. In essence, it was a judicially sanctioned duel. It remained in use throughout the European Middle Ages, gradually disappearing in the course of the 16th century.

Germanic law is a scholarly term used to describe a series of commonalities between the various law codes of the early Germanic peoples. These were compared with statements in Tacitus and Caesar as well as with high and late medieval law codes from Germany and Scandinavia. Until the 1950s, these commonalities were held to be the result of a distinct Germanic legal culture. Scholarship since then has questioned this premise and argued that many "Germanic" features instead derive from provincial Roman law. Although most scholars no longer hold that Germanic law was a distinct legal system, some still argue for the retention of the term and for the potential that some aspects of the Leges in particular derive from a Germanic culture. Scholarly consensus as of 2023 is that Germanic law is best understood in opposition to Roman law, in that it was not "learned" and incorporated regional pecularities.