What information does the QH transaction provide?

The QH transaction is specifically designed to provide comprehensive information about an individual's criminal history as well as details from the Criminal History Database (CCH). This includes significant data such as arrest records, convictions, and other relevant legal information that can be accessed for law enforcement or other investigative purposes.

The option highlighting vehicle registration details is unrelated, as QH does not focus on vehicles. Similarly, while a traffic violation may be part of criminal history, it is not the entirety of what QH covers. Tax information is not relevant to the QH transaction either, as it is solely centered around criminal records rather than financial or tax data. Thus, the correct answer highlights the primary function of QH in providing crucial information related to criminal history.