The Testing of Sex Offenders


The Bureau of Justice Statistics, a research organization within the US Department of Justice, draws data from a number of sources to include the Uniform Crime Reporting (UCR) Program of the FBI to provide:

  • A comprehensive overview of current knowledge about the incidence and prevalence of violent victimization by sexual assault,
  • The response of the criminal justice system to such crimes,
  • The characteristics of those who commit sexual assault or rape.

Research findings indicate the following:

  • Interviewed convicted rape and sexual assault offenders, serving time in State prisons, reported that two-thirds of their victims were under the age of 18.
  • In 90% of the rapes of children less than 12 years old, the child knew the offender, according to police-recorded incident data.
  • Among victims 18 to 29 years old, two-thirds had a prior relationship with the rapist.

Four datasets (the FBI’s UCR arrests, State felony court convictions, prison admissions, and the National Crime Victimization Survey) all point to a sex offender who is:

  1. older than other violent offenders,
  2. generally in his early 30’s, and
  3. more likely to be white than other violent offenders.



The polygraph has become a vital element in the treatment of sex offenders. The courts, community corrections personnel and treatment providers utilize polygraph to:

  • Verify participation in the original charged offense
  • Confirm the full disclosure of sexual history
  • Overcome denial to enhance treatment
  • Deter and detect re-offending
  • Verify compliance with conditions of release


Polygraph examination is a technology that has proven to be effective in detecting deception. It is being used increasingly as a mechanism to assist in managing convicted sex offenders who are in the community. Polygraph scores high among those jurisdictions that use it to regulate and manage convicted sex offenders that have been released into the community.

The polygraph has proved to be an important asset in the treatment and supervision process. It provides independent information about compliance to the conditions of release. When an offender is engaging in non-compliant behavior, the polygraph provides information that informs the treatment provider of the need to take other action to prevent relapse. In many jurisdictions, the polygraph examiner is a key part of the case management team.

The Polygraph Science Center examiners who administer tests to sex offenders are specially trained to work with this population. They are certified by the American Polygraph Association and the Texas JPCOT. Specialized training is available on a contract basis.

Attorneys, aware of the denial that sex offenders tend to demonstrate, call upon the Polygraph Science Center to assist them in determining the level of involvement of their clients in an allegation. It better prepares the defense to address the charges.

Sometimes children will make outcries. This is frightening to the adult who receives this report. It may be against some other member of the family. If it alarms the trusted adult who the child sought who, imagine how painful it is to the child who is the victim. As difficult as it may be, the child must be believed and protective action taken. Not only is that the law, it is morally the right thing to do. You may call us for a basic confidential discussion if you have doubts or concerns about such a report or the suspicious behavior of a child.

It is important to know that the bulk of the sexual abuse cases of children are not committed by strangers but rather by someone close to the child. This is a life altering event to a child. How the trusted adult responds to the outcry is the key to the child’s survival.