What are some of the issues with crime statistics for crimes like arson, burglary, and assaults? why do you think more people don't report being victims of crimes?

One of the biggest issues is the underreporting of these crimes. Sometimes, these crimes go unreported because there is a fear of retribution on the part of the victim. Also, there is a fear by some communities and groups that these crimes won't be taken seriously and the perpetrator won't be arrested and convicted of the offenses.