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obiter dictum (s) (noun)
; obiter dicta (pl)
In law, an expression of opinion on a matter of law, given by a judge in court in the course of either an argument or a judgment, but not forming an essential part of the reasons determining the decision, and therefore not a legally binding authority: "Generally, obiter dictum means anything said as an incidental statement or remark made by a judge and is not part of a final decision."
"When an obiter dictum is stated by a judge, it can be an opinion that may have some influence over the jury and the lawyers present; so, it is an opinion based on experience and wisdom but which has not been thoroughly researched, is not entered into a judgment, and so it has no legal force."