In his Kingston study, Marshal found that pornography could play a number of roles in sexual offences. In some cases, men told him that they looked at pornography with the intention only of masturbating, but then became aroused and decided to go out and assault a woman or a child. These are vicious beyond the users of pornography. Experts estimate that as many as one in three girls and one in seven boys will be sexually molested before age eighteen. In the United States, pornography is the third largest money-maker for organized crime - after drugs and gambling - an $8 - 10 billion per year enterprise. In response to the FBI's questions on the subject, 81 percent of serial killers surveyed said that hard-core pornography was their highest sexual interest. According to the report from Dr. William Marshall, Report on the use of Pornography by Sexual Offenders, 57percent of serial rapists studied admitted to imitating scenes found in pornography. A Michigan state police study of 38,000 rapes concluded that pornography was used prior to or during the commission of the rape in 41 percent of all sexual assault cases.

Some advocates of porn industries say that viewing pornography would help to improve their sex lives. However, research proves that they are wrong. In fact, pornography can cause disturbance in family life and decrease sexual satisfaction within marriage. "In my clinical experience, the major