How did the First Statute of Westminster change English law?

The First Statute of Westminster, issued in 1275 during the reign of Edward I, was a significant legislative measure designed to amend and clarify diverse aspects of both civil and criminal law.1

Rather than a single focused reform, the statute comprised a miscellaneous series of clauses intended to address various legal deficiencies. It served as a supplement to the common law, aiming to remedy grievances held by the king's subjects while also protecting royal rights. Specifically, the statute corrected issues regarding the relationship between lords and tenants and reformed the operation of the system of distraint.12

Written in Old French, the statute was promulgated at Edward’s first "general" parliament, which was notable for including representatives of the commons. It marked the beginning of a series of great statutes enacted between 1275 and 1290 that sought to consolidate and reform administrative and legal matters, creating a new era in English government.13