Dictum

[Latin, A remark.] A statement, comment, or opinion. An abbreviated version of obiter dictum, "a remark by the way," which is a collateral opinion stated by a judge in the decision of a case concerning legal matters that do not directly involve the facts or affect the outcome of the case, such as a legal principle that is introduced by way of illustration, argument, analogy, or suggestion.

Dictum has no binding authority and, therefore, cannot be cited as precedent in subsequent lawsuits. Dictum is the singular form of dicta.

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dictum n. Latin for "remark", a comment by a judge in a decision or ruling which is not required to reach the decision, but may state a related legal principle as the judge understands it. While it may be cited in legal argument, it does not have the full force of a precedent (previous court decisions or interpretations) since the comment was not part of the legal basis for judgment. The standard counter argument is: "it is only dictum (or dicta)." (See: dicta)

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DICTUM, practice. Dicta are judicial opinions expressed by the judges on points that do not necessarily arise in the case.
     2. Dicta are regarded as of little authority, on account of the manner in which they are delivered; it frequently happening that they are given without much reflection, at the bar, without previous examination. "If," says Huston, J., in Frants v. Brown, 17 Serg. & Rawle, 292, "general dicta in cases turning on special circumstances are to be considered as establishing the law, nothing is yet settled, or can be long settled." "What I have said or written, out of the case trying," continues the learned judge, "or shall say or write, under such circumstances, maybe taken as my opinion at the time, without argument or full consideration; but I will never consider myself bound by it when the point is fairly trying and fully argued and considered. And I protest against any person considering such obiter dicta as my deliberate opinion." And it was considered by another learned judge. Mr. Baron Richards, to be a "great misfortune that dicta are taken down from judges, perhaps incorrectly, and then cited as absolute propositions." 1 Phillim. Rep. 1406; S. C. 1 Eng. Ecc. R. 129; Ram. on Judgm. ch. 5, p. 36; Willes' Rep. 666; 1 H. Bl. 53-63; 2 Bos. & P. 375; 7 T. R. 287; 3 B. & A. 341; 2 Bing. 90. The doctrine of the courts of France on this subject is stated in 11 Toull. 177, n. 133.
     3. In the French law, the report of a judgment made by one of the judges who has given it, is called the dictum. Poth. Proc. Civ. partie 1, c. 5, art. 2.