Public Safety & Crime: Crime Reporting Terms, Codes & Classifications
A free glossary of U.S. crime-reporting terms and classification systems — UCR, NIBRS, Part I index crimes, the violent- and property-crime definitions, clearance rate, the hierarchy rule, NCVS, and recidivism — with precise plain-language definitions drawn from the FBI and the Bureau of Justice Statistics. Platform-curated public-domain reference data, free for analysts building or interpreting crime datasets.
{
"_type": "curated_open_data",
"as_of": "2026-07",
"links": {
"canonical": "https://verticalmarketplace.ai",
"docs_for_llms": "https://verticalmarketplace.ai/llms.txt",
"sell_your_own": "https://verticalmarketplace.ai/api/marketplace/listings",
"vertical_listings": "https://verticalmarketplace.ai/api/marketplace/listings?vertical=public-safety"
},
"records": [
{
"term": "UCR (Uniform Crime Reporting)",
"category": "Reporting system",
"reference": "FBI",
"definition": "The FBI program that compiles crime statistics from law-enforcement agencies"
},
{
"term": "NIBRS",
"category": "Reporting system",
"reference": "FBI",
"definition": "National Incident-Based Reporting System; captures detailed data on each incident"
},
{
"term": "Part I / index crimes",
"category": "Classification",
"reference": "FBI UCR",
"definition": "Serious offenses historically used to gauge crime trends"
},
{
"term": "Part II offenses",
"category": "Classification",
"reference": "FBI UCR",
"definition": "Less serious offenses reported only when an arrest is made"
},
{
"term": "Violent crime",
"category": "Definition",
"reference": "FBI UCR",
"definition": "Murder, rape, robbery, and aggravated assault"
},
{
"term": "Property crime",
"category": "Definition",
"reference": "FBI UCR",
"definition": "Burglary, larceny-theft, motor vehicle theft, and arson"
},
{
"term": "Clearance rate",
"category": "Metric",
"reference": "FBI UCR",
"definition": "Share of reported offenses closed by arrest or exceptional means"
},
{
"term": "Crime rate",
"category": "Metric",
"reference": "FBI UCR",
"definition": "Number of offenses per 100,000 population"
},
{
"term": "NCVS",
"category": "Survey",
"reference": "Bureau of Justice Statistics",
"definition": "National Crime Victimization Survey measuring victimization, including unreported crime"
},
{
"term": "Hierarchy rule",
"category": "Methodology",
"reference": "FBI UCR",
"definition": "Summary-reporting rule that counts only the most serious offense in an incident"
},
{
"term": "Dark figure of crime",
"category": "Concept",
"reference": "Bureau of Justice Statistics",
"definition": "Crime that occurs but is never reported to or recorded by police"
},
{
"term": "Recidivism",
"category": "Corrections",
"reference": "Bureau of Justice Statistics",
"definition": "The tendency of a released offender to reoffend"
},
{
"term": "NCIC",
"category": "System",
"reference": "FBI",
"definition": "National Crime Information Center; FBI database of criminal-justice records"
},
{
"term": "Imprisonment rate",
"category": "Metric",
"reference": "Bureau of Justice Statistics",
"definition": "Sentenced prisoners under state or federal jurisdiction per 100,000 residents"
}
],
"sources": [
{
"url": "https://www.fbi.gov/how-we-can-help-you/more-fbi-services-and-information/ucr",
"name": "FBI UCR Program"
},
{
"url": "https://bjs.ojp.gov",
"name": "Bureau of Justice Statistics"
}
],
"category": "glossary",
"vertical": "public-safety",
"data_note": "All records are public-domain facts compiled from the cited sources as of the asOf date. This content is authored and served by the platform itself — it is not seller data, so the marketplace's zero-storage promise about seller datasets is unaffected.",
"record_count": 14,
"what_this_is": "A platform-published open-data listing curated by Open Data Desk, the marketplace's in-house public-data seller. It is real free inventory: it counts in marketplace statistics and is purchasable for $0 through the normal purchase flow, which delivers this payload with an Ed25519-signed receipt.",
"record_schema": {
"term": "The crime-reporting term, metric, or classification",
"category": "Topical grouping",
"reference": "Authoritative source that defines the term",
"definition": "Plain-language meaning"
},
"buyer_use_cases": [
"Standardize crime terminology across an analytics or newsroom team",
"Correctly interpret UCR versus NIBRS and NCVS figures",
"Onboard new researchers to justice-data classifications"
]
}The full dataset is delivered after purchase. Fingerprint: sha256:b16de41279ec65476e0958c835a0e8f1d3c19b8823c94658abf9951a06fc2d09
No answered questions yet — ask the seller anything about this listing.
Data is contributed by independent third-party sellers. Vertical Marketplace facilitates the transaction and remits 95% of each sale to the seller. Prohibited content (digital keys/licenses/game codes, and health data the seller does not own — e.g. patient records) is not permitted; individuals may sell their own personal health data only via the signed Health Data Consent Flow. See /terms.
- Use the purchased data for your own commercial and non-commercial work
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- Limited listings are sold to a capped number of buyers and delisted once sold out
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