One of the first modern PDD examiners, Reid (d. 1982) developed many techniques still in use today. Reid is credited with bringing the probable-lie comparison question into common practice in the field. He also developed the Reid Technique, which includes the Yes Test and the Guilt Complex Test. Reid helped bring about the first state licensure for PDD practitioners in Illinois in 1963. Reid instructed hundreds of students at his school and offered the first accredited Masters program in PDD. Though the Reid School closed in the 1980s, the Reid Technique is used by some PDD examiners today.