What does polygraph required mean for a job position?

'Polygraph Required' means that as part of the hiring process for this job, candidates must undergo and pass a polygraph examination, also known as a lie detector test. This requirement is typically found in positions involving sensitive or classified information, such as roles in law enforcement, intelligence, or national security. The polygraph exam is used to verify the truthfulness of information provided by the applicant and to ensure they meet the trustworthiness standards set by the employer. Failing or refusing the polygraph can disqualify a candidate from the position.