Whether expert testimony about mental acuity is admissible to show a person's ability to observe and to act to exercise dominion and control over a home in which he was a guest

QUESTIONS PRESENTED This court has not decided whether expert testimony about mental acuity is admissible to show a person’s ability to observe and to act to exercise dominion and control over a home in which he was a guest. Psychological expert testimony regarding perceptive ability is a matter of first impression in this Court. Contrary to every court of appeals that has admitted expert drug agent testimony, the Fifth Circuit admitted the testimony of an experienced drug enforcement agent who had no knowledge of the facts of this case and who expressed no opinion about any matter in this case. i