Question: Can you recommend a service that provides unbiased crime data for neighborhoods in the US?

If you're looking for neutral crime data for neighborhoods in the US, CrimeGrade is a good option. The service offers detailed crime data through statistical computation and machine learning techniques, and presents crime data as maps and grades for serious crimes. You can enter your zip code to drill down to neighborhood-level crime rates. It's geared for homebuyers, homeowners and researchers who want more detailed information and neutral data.

Another interesting service is Flock Safety, which offers a more general purpose evidence collection and situational awareness service. It combines License Plate Recognition (LPR) cameras, gunshot detection and video intelligence for a safer community. Flock Safety is for law enforcement, businesses, property managers, schools and homeowners associations that want to improve safety and fight or solve crime. It's got a privacy, transparency and ethics focus that's a good start.

If you want a broader set of data, aggregated from more than 193 countries and 5,000 states and provinces, check out Data Commons. This public repository catalogs data in economics, demographics, health and other subjects. It offers a variety of tools like a map explorer, scatter plots and timelines, and lets you download data for your own analysis. Data Commons is good for scientists, policymakers and journalists who want cleaned and processed data they can use through cloud-based programming interfaces.