Legal usage
A seriatim opinion is an opinion delivered by a court with multiple judges, in which each judge reads his or her own opinion rather than a single judge writing an opinion on behalf of the entire court. Traditionally, judges read in order of reverse seniority, with the most junior judge speaking first. In the United States, this practice was discontinued in favour of majority opinions contra the British tradition of separate opinions.In the United Kingdom
Most frequently used in modern times (when used at all) pleadings as a shorthand for "one by one in sequence". For example, in English civil cases, defence statements generally used to conclude with the phrase "save as expressly admitted herein, each allegation of the plaintiffs is denied as if set out in full and traversed herein ''seriatim''." This formulation is now superfluous under the EnglishIn the United States
During the Supreme Court under Chief Justice Marshall, 1801 to 1805, the practice of judicial opinions being delivered in seriatim was discontinued. It was restored by Justice William Johnson, who, from 1805 through 1833, wrote nearly half of the Supreme Court's dissenting opinions.Oliver Schroeder, J. (1947). The Life and Judicial Work of Justice William Johnson, Jr. ''University of Pennsylvania Law Review'', ''95''(3), 344. Morgan, D. (1944). Mr. Justice William Johnson and the Constitution. ''Harvard Law Review,'' ''57''(3), 328-361. In 2009, Title III, Rule 15(a)(1) of the U.S. Federal Rules of Civil Procedure regarding Amended and Supplemental Pleadings (part of pretrial procedure) was amended to allow three changes in the time previously allowed to make one change.This provision will force the pleader to consider carefully and promptly the wisdom of amending to meet the arguments in the motion... and will expedite determination of issues that otherwise might be raised ''seriatim''.The right to make changes now ends 21 days after service of a motion.
Actuarial usage
Actuarial calculations made in respect of a database (such as insurance policies or asset holdings) may be referred to as seriatim. This implies calculation results are produced for each database record explicitly, i.e. without model compression (data grouping) and before summation.References
{{reflist Latin legal terminology