"Public" data is rarely open or publicly available,
and when it is, it's usually not easy to use.
how many people have a criminal record how many people have served time in prison or jail how many children are on some type of supervision or probation how many juveniles become adult offenders how often people reoffend after release how many shootings there are in America how many police are investigated or prosecuted for misconduct how many people in America own guns how often police stop pedestrians or motorists how many incidents of domestic violence are reported to police what percentage of those eligible for parole are granted release from prison how many corrections officers are disciplined or prosecuted for abusing prisoners how many criminal cases are referred to prosecutors and how they decide which to pursue
Broad suspicion of transparency
Lack of will
Pick up the phone
Go to the courthouse
Get the piles of paper
Liberate the PDFs
Make your own data that answers the questions you have.