In Attempting to Exclude Expert Testimony, construction site expert witness William Gulya, Jr., President & CEO, Middlesex Trenching Company, writes:
Because the use of expert witnesses at trial is increasing, it comes as no surprise that attempts to exclude expert testimony are also increasing.
The first and most common is a motion in limine, often made before the trial or before the expert witness testifies. In a motion to the court, the attorney attempts to make a clear and convincing argument that the witness is unqualified to render his or her opinion. The second approach, often combined with the motion in limine, is to move for a voir dire examination of the expert.