Polygraph Testing

PolyTest Services of Texas, LLC is regularly retained by private individuals, agencies, attorneys and businesses to administer professional polygraph examinations,
  •     Specific Issue Testing (Criminal and Civil)
  •     Pre-Employment Screening
  •     Sex Offender Testing
  •     Relationship and Fidelity Testing
  •     Addiction and Testing for Therapy
  •     Asylum and Immigration Testing

Polygraph - Specific Issue Testing (Criminal and Civil)

When a specific and identifiable incident occurs (theft, sabotage, arson, homicide, assault, fraud, sexual acts and/or contact with a minor, etc.), the polygraph technique is the most effective means available to determine the credibility of a person's statements.

A specific issue polygraph examination consists of the following steps:
  • A personal conference or telephone discussion during which the polygraph examiner obtains a complete history of the case background information;
  • A pretest interview with the subject which will generally last an hour or more during which the examiner discusses the issue under investigation, thoroughly reviews all of the test questions that will be asked during the examination, and assesses the individual's emotional and physiological suitability to take the test;
  • A thorough explanation of the instrument and testing procedures;
  • A series of 4 to 6 tests or charts, during which the subject's physiological responses are recorded as they answer a set of pre-established questions concerning the issue under investigation; and
  • A review and interpretation of the polygraph charts, from which the examiner will reach one of three conclusions - that the subject is telling the truth; that the subject is not telling the truth (deception or significant response); or, that the results are inconclusive.

 Upon completion of the examination a verbal report will be given to the client, if requested, followed by a written report which will provide a synopsis of the case information available to the examiner at the time of the testing, a list of the relevant test questions, the subject's answers, and the examiner's opinion as to the subject's truthfulness or deception.

 If the exam is provided at the customer's location it is the customer's responsibility to provide a suitable testing room. The room must be quiet and free from distracting noises and other interference (i.e. crying babies, telephones, television, nearby conversations). No one other than the subject and examiner (and a translator if needed) are permitted in the examination room. There must be a table, two chairs and an electrical outlet. This room may be inside someone's home or office, or may be a rented meeting room. We do not recommend testing in a hotel room or bedroom, particularly with female subjects, for obvious reasons. This room is usually provided at the customer's expense, as it is not included in the exam fee.

"You may not remember me but (Detective) Holmes had you do a polygraph on my wife and I when my daughter was assaulted by her daycare person..... You scared the crap out of me in the polygraph, but really enjoyed working with you and hope all is well with you."   John S., 20 years later.


Pre-Employment Polygraph Screening (PEPS)

Polygraph examinations are commonly used as a pre-employment screening tool for applicants desiring to work for law enforcement and government agencies, as well as those private businesses that fall under the exemptions of the Employee Polygraph Protection Act (EPPA). It is the responsibility of those employing law enforcement personnel to maintain the integrity of the agency and its employees, and to maintain a professional image. With authority comes responsibility and accountability.

Law enforcement agencies are entrusted by their citizenry to confirm that police applicants are not criminals or illegal drug users, or have a propensity for dishonesty. Society only wants those members of the public who are honest and possess high standards and integrity to serve in positions of public trust. The courts rely on police officers' testimony in taking property and freedom from citizens, and truthfulness on the part of police officers is imperative. Dishonesty and deviant acts cannot be tolerated within law enforcement and other government agencies, or any business for that matter. In dealing with lies or deceit, the public's trust and confidence is sorely undermined, which is essential to the agency's ability to fight crime and serve the community effectively.

If an applicant's propensity for dishonesty is found before the applicant is hired, there is a good indication that problems will arise should the person be hired. The best indicator of future performance is past performance. The polygraph examination can uncover these areas of dishonesty, and promote honesty among future applicants who have knowledge that the information they provide on their application paperwork is subject to verification through the polygraph technique.

PolyTest Services of Texas, LLC has extensive experience in conducting Pre-Employment Polygraph Screening to local, county and state agencies. An extensive background and interview process is conducted prior to the administering of a polygraph screening to determine if the candidate has withheld any significant information in regards to their background. We can assist you with a proven successful program and provide you with the necessary materials.

Post-Convicted Sex Offender Testing (PCSOT)

Many states have developed programs for the treatment and monitoring of sex offenders during their parole or probation periods. Many of these treatment programs require the administration of initial and periodic polygraph exams for purposes of verifying treatment compliance, parole violations, and recidivism. Standards for Post-Conviction Sex Offender Testing (PCSOT) have been established by the American Polygraph Association (APA) and ASTM, which requires the examiner to undergo special additional training and certification to provide this type of testing. When hiring the examiner for this purpose, make sure the examiner is a Certified PCSOT examiner.

Types of Exams Used for PCSOT Testing:

  • Instant Offense: This format is used to determine whether the original crime was actually committed by the subject. Denial or rationalization of this crime, if actually committed, hinders appropriate treatment from being provided.
  • Sexual History Disclosure: Appropriate treatment can only be successful if the subject's complete sexual history is disclosed to the treating psychologist. This format is used to verify whether the subject has withheld pertinent information from his/her background.
  • Monitoring Testing: An important aspect of the monitoring program is to verify that the subject has not committed new sexual offenses while in the program. This format is used for exactly this purpose.
  • Maintenance Testing: This format is used to determine any issue related to parole, probation or therapy of specific interest to the psychologist or parole/probation officer. Some typical uses for this exam would be to determine whether the subject has been in contact with children in violation of parole/probation guidelines, has viewed pornography, has had any contact with a previous victim, or is "grooming" anyone as a new potential victim.

Relationship and Fidelity Testing

When trust is lost in a relationship, it could takes years to recover, if ever. In many cases the evidence of adultery is not definitive, so the only way to find out the truth is through polygraph testing.

Polygraph exams are used extensively for relationship issues. This is one area of testing where experience makes a big difference. The wording of test questions is critical to a successful exam, since many words can be interpreted differently by different people in highly emotional situations.

Fidelity testing is utilized to determine whether one partner has had sexual contact with anyone else besides his/her partner. Other related items may include questions about seeking out sexual partners, dating, contact with "exes," etc.

Addiction and Testing for Therapy

Addiction and testing for therapy is utilized to determine whether the information disclosed during therapy is complete, much like a sex offender, in order for the therapist to effectively treat someone, especially someone suffering from addiction. Testing can be done to determine if the true extent of conduct has been completely disclosed. Once fully disclosed - periodic testing is used to determine if the patient is complying with bottom line treatment goals and not involved in covert behaviors that are linked to their addiction. These are extreme deep based emotional issues that require a special kind of examiner to work with the patient, the patient’s family, and the therapist together. 

I highly recommend Aldo Fantoni. I and my colleagues in Massachusetts have worked with him frequently in conducting polygraph exams for our clients. He understands the therapeutic use of polygraph, is highly skilled, and is a caring person who establishes good rapport both with addicts and spouses. If you want more details, contact me at joel@ziffgroup.com   - Joel Ziff, Ed.D., Psychologist, CSAT-S.

Asylum and Immigration Testing

Polygraph testing has been used more and more to prove incidents leading to asylum and other immigration issues. Issues arise when discrepancies are found in information provided to authorities on visas and other official documents used to enter and remain in the United States. Marriages are often scrutinized and examined. Generally a translator is employed to assist the examiner with conducting the examination in the examinee’s native language. This testing also takes an experienced examiner who can take the time to work with the examinee to assure they understand the process and that they understand exactly what is being asked of them.