Definition
A writ of association is a historical English procedural instrument directing designated persons — typically the clerk of assize and subordinate officers — to join or attach themselves to the justices and serjeants for the purpose of taking the assizes. The writ formally incorporated these officers into the judicial proceeding, authorizing them to sit alongside the judges at the assize courts and participate in the conduct of those proceedings.
The writ was a creature of English practice, not American law, and belongs to the institutional machinery of the assize system — the circuit court structure through which royal justice was administered across the counties of England and Wales.
Common Confusion
The entry appearing in Black's Law Dictionary under this heading appears to be a typographical or editorial error, conflating the writ of association with an entirely distinct matter: an inquiry by a board of trade into losses, abandonments, and casualties of ships near the coast of the United Kingdom. This shipping inquiry bears no relationship to the writ of association as defined by Bouvier's or by Blackstone. Researchers encountering the Black's entry should treat it with caution and cross-reference Bouvier's and the original Blackstone passage (3 Bl. Com. 59).
The writ of association should also not be confused with the writ of assistance (a search and seizure instrument used in customs enforcement), the writ of assize (the proceeding itself), or the constitutional right of association, which is a wholly separate doctrine rooted in the First Amendment.
Why It Matters in Research
This term is largely a dead letter in American legal practice and appears almost exclusively in historical sources tracing English procedural origins. Researchers are most likely to encounter it when working in one of three contexts:
First, when tracing the institutional history of the assize courts and the development of English circuit justice — foundational material for understanding how common law procedure was transplanted to the American colonies and, in modified form, to early American courts.
Second, when using older legal dictionaries, particularly Black's, researchers should be aware that the entry under this heading is almost certainly corrupted or misplaced. Relying on Black's alone for this term will produce a confused and inaccurate understanding. Bouvier's and the Blackstone citation are the reliable sources.
Third, the term can surface in ecclesiastical and equity proceedings where similar "association" mechanisms were used to add officers or commissioners to a proceeding. The underlying concept — formal attachment of officers to a court or commission by writ — recurs in variant forms across English legal history, and researchers following that thread should look to the broader writ taxonomy.
Historical Dictionary Support
Bouvier's provides the authoritative and useful entry, tracking directly to Blackstone (3 Bl. Com. 59) and identifying the writ's function precisely: it directed the clerk of assize and subordinate officers to associate themselves with the justices and serjeants, and required the justices to admit those persons into their society for the purpose of taking the assizes. The operational logic is one of formal inclusion — the writ created the legal authority for non-judge officers to be present and active in assize proceedings.
Black's entry, by contrast, is anomalous. The text describes an inquiry into maritime losses and casualties — a board of trade procedure having nothing to do with the assize system. This appears to be a compositor's error or a misattributed entry, and Black's should not be used as an independent source for this term.
Neither dictionary offers significant treatment of the writ's historical scope, frequency of use, or the circumstances under which it would be granted or refused. For deeper research, Blackstone's original passage and secondary works on English assize court administration are more productive sources than either dictionary entry.
Jurisdictional Note
The writ of association is English in origin and has no recognized American counterpart. It belongs to a procedural system — the assize courts — that was never replicated in the United States. American researchers will encounter it only in historical or comparative contexts.
Encyclopedia Cross-Reference
Coram Nobis and Other Extraordinary Writs (The Law Mind Criminal Law Encyclopedia) — for context on the broader taxonomy of English and American writs and the historical role of extraordinary writ practice.