Sunday, August 31, 2025

There is a difference between crime and the perception of crimes


 

















Two different ways of looking at the same - more or less - thing.

How do we get crime data?

Dear ChapGPT: 

Crime rates are usually measured by governments and researchers using official data sources and surveys. The most common ways include:

1. Police Reports and Official Records
- Uniform Crime Reports (UCR) in the U.S. (run by the FBI) collect crime data reported by local law enforcement agencies.
- Crimes are typically categorized as violent crimes (murder, assault, robbery, rape) and property crimes (burglary, theft, motor vehicle theft, arson).
- The "crime rate" is usually expressed as the number of reported crimes per 100,000 people in a given year.

2. Victimization Surveys
- Not all crimes are reported to police, so victim surveys help capture the “dark figure of crime.”
- Example: National Crime Victimization Survey (NCVS) in the U.S. asks people if they’ve experienced crime, even if they didn’t report it.
- These surveys give a broader picture of crime trends, especially for underreported crimes like sexual assault or domestic violence.

3. Self-Report Surveys
- Individuals (often students or community members) are asked whether they’ve committed certain crimes.
- Useful for studying crimes that are less likely to be reported (e.g., drug use, minor theft, vandalism).

4. Court and Prison Data
- Conviction rates, sentencing, and incarceration statistics can also serve as indirect measures of crime.
- These reflect the justice system’s response to crime, not necessarily total crime levels.

In short: Crime rates are most often reported as number of crimes per 100,000 population, based on police data, but researchers also use victim surveys and self-reports to capture unreported or hidden crime.


Direct searches: 

FBI: Crime Data Reporter.