voir dire

noun3

1. •
   (US) The preliminary phase of a jury trial in which the jurors are examined and selected.
2. •
   A preliminary hearing without a jury in order to determine whether the evidence meets the test for admissibility to go to a full hearing at a criminal trial, in the legal systems of England and Wales, New Zealand, Australia, and the United States.
3. •
   A hearing in the context of a larger trial to determine some specific issue relevant to that trial, such as the admissibility of a piece of evidence or the competency of a witness to testify.