In limine

at the beginning, from the start (Latin)

Motion in limine (Latin: "at the threshold") is a motion, made before the start of a trial requesting that the judge rule that certain evidence may, or may not, be introduced to the jury in a trial. This is done in judge's chambers, out of hearing of the jury. If a question is to be decided in limine, it will be for the judge to decide. Usually it is used to shield the jury from possibly inadmissible and harmful evidence.
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Latin: at the beginning or on the threshold. - (read more on In limine)