Definition
An alternative writ is a court order commanding the person or entity against whom it is directed either to perform a specified act or to appear before the court and show cause why the act should not be compelled. It presents the recipient with two options: comply immediately, or come to court and offer legal justification for non-compliance. If no sufficient cause is shown, the court may issue a peremptory writ — an absolute, unconditional command to perform.
The alternative writ is most closely associated with mandamus proceedings, where it typically serves as the initiating instrument. It is not a final judgment but a preliminary order that opens the door to judicial enforcement.
Common Confusion
Alternative writ vs. peremptory writ: These two instruments are sequential, not synonymous. The alternative writ is the first step — conditional, demanding compliance or an explanation. The peremptory writ is the second step — unconditional, issued after the respondent fails to show adequate cause. Researchers encountering either term in historical records should determine which stage of the proceeding is being documented. Conflating them misreads the procedural posture entirely.
Alternative writ vs. rule to show cause: In modern practice, many jurisdictions have replaced the alternative writ with a rule to show cause, which accomplishes the same function — requiring the respondent to justify non-performance — but through a court order rather than a writ. Older sources use alternative writ; modern sources often use rule to show cause. The procedural function is equivalent; the form is not.
Core Elements
For an alternative writ to issue, the following conditions must generally be present:
1. A specified act: The writ must identify with particularity what the respondent is commanded to do. Vague or open-ended commands are insufficient.
2. Legal duty to act: The petitioner must demonstrate that the respondent has a clear, ministerial legal obligation to perform the act in question. Discretionary acts generally cannot be compelled by mandamus, and therefore do not support an alternative writ.
3. No adequate remedy at law: The writ procedure is appropriate only where the petitioner lacks an adequate alternative remedy, such as a direct appeal.
4. The alternative: The "or show cause" component is not optional language — it is the defining feature. The respondent retains the right to appear and contest the issuance of a peremptory writ before compulsion is imposed.
Why It Matters in Research
The alternative writ is a structural artifact of the common law writ system, and its presence or absence in historical records signals important information about procedural posture. Researchers working with pre-twentieth-century federal or state court records should understand that the alternative writ was often the formal beginning of a mandamus action — its issuance meant the court found the petition colorable, not that relief had been granted.
The transition from writs to motions in modern civil procedure significantly affects how this term appears across different eras of the corpus. Post-adoption of the Federal Rules of Civil Procedure (1938), the alternative writ largely disappeared from federal practice, replaced by the order to show cause. State courts varied in how quickly they followed suit. A researcher who encounters "alternative writ" in sources after the mid-twentieth century should investigate whether the jurisdiction retained the traditional writ form or was citing historical authority.
The term is also a navigational marker: its appearance typically means the researcher is in extraordinary writ territory, not ordinary civil litigation. This distinction matters for locating applicable procedural rules, identifying the correct court records, and understanding the limited scope of review available at that procedural stage.
Be alert to the occasional appearance of alternative writ in contexts beyond mandamus — historically, the form was used with other prerogative writs as well — but mandamus is overwhelmingly the operative context in American legal sources.
Historical Dictionary Support
Black's Law Dictionary and Rapalje & Lawrence are in complete agreement on the core definition: the alternative writ commands performance of a specified act or appearance to show cause why performance should not be compelled. The formulations are nearly identical, which reflects that by the time these dictionaries were compiled, the term had a settled and uncontested meaning in American practice.
Rapalje & Lawrence adds a useful cross-reference to mandamus, correctly identifying the relationship between the two. Neither source, however, addresses the procedural displacement of the alternative writ by modern show-cause orders — a development that postdates these dictionaries and is essential context for researchers using both historical and contemporary materials in the same project.
Neither dictionary explores the distinction between the alternative writ's role as a preliminary instrument versus the peremptory writ's role as a final command. That distinction, while implicit in the definitions, requires supplementation from procedural treatises to be practically useful.
Jurisdictional Note
Federal courts largely abandoned the formal alternative writ after the adoption of the Federal Rules of Civil Procedure, substituting orders to show cause. State courts vary considerably — some retained writ terminology well into the late twentieth century, and a handful of states continue to use it in their extraordinary writ procedures. Researchers should not assume terminological uniformity across jurisdictions or time periods.
Encyclopedia Cross-Reference
Coram Nobis and Other Extraordinary Writs (The Law Mind Criminal Law Encyclopedia, criminal_240)
Habeas Corpus — The Great Writ and Suspension Clause (The Law Mind Constitutional Law Encyclopedia, constitutional_151)