The images themselves vary considerably in their graphic content. In some cases individuals may collect images that do not involve overt pornography and are not technically illegal. C.: National Center for Missing & Exploited Children.
However, the advent of the Internet in the 1980s dramatically changed the scale and nature of the child pornography problem, and has required new approaches to investigation and control. “Revisiting the Use of Pornography by Sexual Offenders: Implications for Theory and Practice.” The Journal of Sexual Aggression –77.
Internet child pornography is unlike most crimes local police departments handle.
However, pornography in the modern sense began with the invention of the camera in the early nineteenth century.
Almost immediately, sexualized images involving children were produced, traded, and collected.Even so, child pornography remained a restricted activity through most of the twentieth century. “Identity Theft.” Problem Oriented Guides for Police.
There are 10 levels of image severity: The Internet has escalated the problem of child pornography by increasing the amount of material available, the efficiency of its distribution, and the ease of its accessibility. Child Pornography: The Criminal-Justice-System Response.