The successful examination of handicapped subjects depends upon careful preparation of questions and adaptation of techniques. Rehearsal with an assistant is strongly recommended before working with deaf, dumb, and blind subjects. Those who stutter may be able to whisper their answers, or a “silent answer” test may be employed. The examiner will need extra time for preparation and conduct of these cases, but there is no reason to avoid them. Polygraph testing of persons afflicted by certain handicaps often presents difficulties with respect to modifying procedural matters and equipment. For this reason, examiners tend to avoid testing in such situations, often needlessly. It is the intent of this paper to discuss procedures which can be used successfully to overcome difficulties encountered when testing persons who stutter, are deaf and dumb, or are blind. References