The Research Guide will help you find statistics - U.S. Government, state-level, and international.
A source of interest in the COVID-19 era is this presentation of criminal justice data from 27 major U.S. cities titled COVID-19 and Crime in U.S. Cities. It charts changes in crime trends in 2020. Also available to download are key findings and graphs and the academic paper that documents the "short-term impact of the COVID-19 pandemic on crime."
For personalized help finding statistics on any topic, please reach out to the reference librarians for an in-person or Zoom appointment.