information:extraction, information:classification
Public perception

Crime is often a high priority political issue in developed countries, regardless of the country's crime rates. People that are not regularly exposed to crime most often experience it through media, including news reporting and crime fiction. Exposure of crime through news stories is associated with alarmism and inaccurate perceptions of crime trends. Selection bias in new stories about criminals significantly over-represent the prevalence of violent crime, and news reporting will often overemphasize a specific type of crime for a period of time, creating a "crime wave" effect.

As public opinion of morality changes over time, actions that were once condemned as crimes may be considered justifiable.