We found that CBP administered polygraph examinations to unsuitable applicants who provided disqualifying information during the pre-test interview. This occurred because CBP’s process is not sufficient to prevent unsuitable applicants from continuing the polygraph examination. We made two recommendations to CBP to improve its screening by establishing an in-person pre-security interview process, requiring examiners to use the on-call adjudication process, and discontinue testing of unsuitable applicants. CBP concurred with both recommendations and agreed that conducting the in-person pre-security interview prior to the polygraph examination is a best practice. CBP has implemented one of the recommendations and has initiated a pilot program for a new polygraph format.