Crime Databases

Looking for crime information?

There are databases for that.

And quite a few of them.

The tricky part is knowing which database might actually contain what you're looking for, what its information means and what it doesn't tell you.

A crime database isn't a giant online filing cabinet containing every crime ever committed. Different databases collect different information, cover different places and use different definitions. Some focus on statistics. Others contain individual cases. Some are designed for researchers and the public, while others are primarily used by law enforcement.

So before you start searching, it helps to know what you're looking at.

What Is a Crime Database?

In simple terms, a crime database is a collection of information that has been organised so it can be searched, analysed or explored.

That information might include:

• reported offences
• crime statistics
• victim information
• offender information
• arrests
• court outcomes
• missing persons
• unidentified persons
• crime locations
• police activity
• historical crime records

The important thing is that there isn't one universal crime database.

Think of them more like different drawers in a very large filing cabinet.

You need to know which drawer you're looking for.

Start With the Question

Before searching a database, work out what you're actually trying to find.

For example:

• Want to know how much crime occurs in a particular area? Look for crime statistics or geographic data.
• Researching a missing person? Look for a missing-person database.
• Trying to understand an old case? You may need historical records or newspaper archives instead.
• Looking for information about an offender? You may need court, corrections or police records.
• Trying to compare crime across years? Look for a statistical database with consistent historical data.

Knowing the question before opening the database makes life much easier.

Official Databases Come First

When you're looking for crime data, start with the organisation that actually collected or published it whenever possible.

That might be a national statistics agency, police organisation, court, government department or other official body.

For example, in Australia, the Australian Bureau of Statistics publishes national crime and justice data, including recorded crime information and data about offenders. Its crime collections include historical releases as well as current publications. :contentReference[oaicite:0]{index=0}

For researchers, that's considerably more useful than a random website saying, "Australia had X crimes last year."

You can go back to the original data and see what was actually measured.

Australia: Start With the ABS

If you're researching Australian crime statistics, the ABS is one of the key places to start.

The ABS publishes Recorded Crime - Victims, which contains national and state and territory data based on offences recorded by police. The current collection also provides downloadable tables and explains the scope and methodology behind the data. :contentReference[oaicite:1]{index=1}

There are also separate ABS collections covering recorded offenders and crime victimisation.

That's useful because these aren't all measuring exactly the same thing.

And that brings us to an important rule:

Always check what a database is actually counting.

State and Territory Databases

National figures are useful, but sometimes you need to go closer to the ground.

Australian states and territories have their own police and justice data systems, and some provide detailed public crime data.

For example, the NSW Bureau of Crime Statistics and Research (BOCSAR) provides crime and policing statistics, dashboards and downloadable datasets for New South Wales. Its tools can be used to explore criminal incidents, victims and offenders by geographic area, while its datasets provide more detailed information for researchers. :contentReference[oaicite:2]{index=2}

BOCSAR also provides daily incident data showing criminal incidents recorded by police by offence type. :contentReference[oaicite:3]{index=3}

Other Australian states have their own systems, so if you're researching a particular case, check the relevant state or territory agency as well as national sources.

United States: FBI Crime Data

If you're researching crime in the United States, one of the major sources is the FBI's Crime Data Explorer.

The Crime Data Explorer provides access to data collected through the FBI's Uniform Crime Reporting program and allows the public to explore crime data through charts, tables and other tools. The FBI says its UCR program collects data from thousands of participating law enforcement agencies across the United States. :contentReference[oaicite:4]{index=4}

The FBI's National Incident-Based Reporting System, or NIBRS, provides more detailed incident-level information than the older Summary Reporting System, including information about victims, known offenders, relationships, arrestees and property involved in incidents. :contentReference[oaicite:5]{index=5}

That distinction matters when you're comparing older and newer American crime data.

The system collecting the information can affect what appears in the numbers.

United Kingdom: Police Data

For England, Wales and Northern Ireland, data.police.uk provides public crime and policing data.

The service allows users to explore or download street-level crime, outcomes and stop-and-search data, along with other policing information. :contentReference[oaicite:6]{index=6}

That's particularly useful when you're researching crime geographically.

You can explore what has been recorded in particular areas rather than relying entirely on national headlines or broad statistics.

International Crime Data

When you're researching crime across multiple countries, things get a little more complicated.

Different countries have different laws, definitions, reporting systems and methods of collecting crime data.

That means comparing two countries isn't always as simple as putting two numbers beside each other.

The United Nations Office on Drugs and Crime Data Portal is one useful international starting point. It provides data covering areas including intentional homicide, violent and sexual crime, prisons, justice systems, trafficking and other crime-related subjects. :contentReference[oaicite:7]{index=7}

Again, check the methodology before drawing conclusions from an international comparison.

Missing Person Databases

Crime databases aren't only about crime statistics.

Some are designed around individual cases.

One particularly useful example in the United States is NamUs, the National Missing and Unidentified Persons System.

NamUs is a national repository for missing, unidentified and unclaimed persons cases in the United States. Public users can search publicly available case information, while authorised professional users have access to additional sensitive information. :contentReference[oaicite:8]{index=8}

For researchers looking into missing-person or unidentified-remains cases, this can be an important starting point.

It is also a good reminder that different databases are built for different purposes.

Crime Maps

Some databases turn their information into maps.

These can be incredibly useful because crime is often easier to understand when you can see where something happened.

You might be able to investigate:

• crime by suburb or neighbourhood
• crime by local government area
• crime by offence type
• crime over a particular period
• changes in crime patterns across locations

But don't assume that a dot on a map represents the exact location of a crime.

Some systems deliberately generalise or anonymise locations to protect privacy.

For example, UK police data explains that locations may be altered or excluded where the precise location isn't known or where publishing it could create privacy concerns. :contentReference[oaicite:9]{index=9}

What Does "Reported" Actually Mean?

This is one of the biggest traps when working with crime databases.

A database might be recording:

• crimes reported to police
• crimes recorded by police
• arrests
• charges
• court cases
• convictions
• victims
• offenders proceeded against

Those are not interchangeable.

For example, the ABS Recorded Crime - Victims collection specifically covers victims of selected offences as recorded by police. :contentReference[oaicite:10]{index=10}

So if you're looking at a number from a crime database, don't just copy the number.

Read the label.

Read the definition.

Read the methodology.

It may sound boring.

It will save you from making a very interesting mistake later.

Reported Crime Isn't the Same as All Crime

This is worth remembering every time you use crime statistics.

Many crime databases rely on incidents that come to the attention of authorities or are recorded through a particular reporting system.

That means the database doesn't necessarily represent every crime that actually occurred.

Some crimes are never reported. Some reports don't result in an offence being recorded. Some data collections only cover particular offence categories or populations.

So a database tells you something about the data it collects.

It doesn't automatically tell you everything about crime in the real world.

Watch for Changes in Definitions

Here's another reason historical comparisons can get tricky.

Definitions and data-collection systems can change.

The FBI, for example, transitioned its national crime reporting system toward NIBRS, which collects more detailed incident information than the older Summary Reporting System. :contentReference[oaicite:11]{index=11}

That means a researcher comparing older and newer figures needs to understand how the data was collected during each period.

The same principle applies in other countries.

If a number suddenly changes, don't immediately assume the underlying crime changed by the same amount.

Check whether the way the number was produced changed too.

Check the Date

Crime databases are often updated.

That means the number you see today might not be the number you saw six months ago.

Whenever possible, record:

• the database name
• the date you accessed it
• the period covered by the data
• the version or release date, if provided
• any important methodology notes

This is especially important when you're using data in an article or research project.

Download the Data

If a database lets you download its underlying data, consider doing so.

Interactive charts are handy, but downloadable data can give you much more flexibility.

You can sort it, filter it, compare periods and create your own calculations.

Official databases often provide CSV, Excel or other downloadable formats. The ABS, for example, provides downloadable tables with its crime publications, while UK police data can be downloaded in CSV format. :contentReference[oaicite:12]{index=12}

Just remember that downloading a spreadsheet doesn't magically make you a statistician.

You still need to understand what the columns mean.

Read the Methodology

Yes, we know.

You saw the word methodology and briefly considered closing the browser.

Don't.

The methodology is often where the really important information is hiding.

It can tell you:

• where the data came from
• what is included
• what is excluded
• how offences are classified
• how locations are recorded
• how missing information is handled
• how often the database is updated
• whether figures are estimates or recorded counts

If you're going to quote a statistic, knowing how it was produced is just as important as knowing the statistic itself.

Don't Confuse a Database With a Case File

This is another easy mistake.

A database entry may give you a useful starting point, but it usually isn't the complete story of a case.

You may find a date, location, offence category or case number.

That doesn't necessarily mean you've found everything that happened.

Use database information as a way to find the next source.

A case number might lead you to a court record.

A location might lead you to local reporting.

A person's name might lead you to another official record.

That's where databases become really useful.

Use More Than One Database

Sometimes the best research comes from combining databases.

Imagine you're researching a case from 1995.

You might use a crime database to establish basic information, a newspaper archive to see how the case was reported at the time, a court database to investigate the legal proceedings and a map to understand the locations involved.

Each source answers a different question.

That's much stronger than expecting one database to do everything.

What If You Can't Find the Case?

Don't immediately assume the case isn't recorded.

Try changing your search.

Check:

• different spellings of names
• maiden or former names
• initials
• different locations
• different years
• alternative offence descriptions
• older versions of the database
• local rather than national sources

And remember that some databases have limits on how far back their searchable records go.

An absence from one database isn't automatically proof that no record exists.

A Few Good Starting Points

Here are some official databases and data portals worth knowing about.

Australia

• Australian Bureau of Statistics - Crime and Justice: National crime and justice statistics, including recorded crime and offender data. :contentReference[oaicite:13]{index=13}
• NSW Bureau of Crime Statistics and Research: Crime, policing, courts and sentencing data for New South Wales, including interactive tools and downloadable datasets. :contentReference[oaicite:14]{index=14}

United States

• FBI Crime Data Explorer: Explore data from the FBI's Uniform Crime Reporting program. :contentReference[oaicite:15]{index=15}
• NamUs: Search publicly available information about missing, unidentified and unclaimed persons cases in the United States. :contentReference[oaicite:16]{index=16}

United Kingdom

• data.police.uk: Public crime and policing data for England, Wales and Northern Ireland, including downloadable datasets. :contentReference[oaicite:17]{index=17}

International

• UNODC Data Portal: International crime and criminal justice data covering subjects such as homicide, violent crime, prisons and justice systems. :contentReference[oaicite:18]{index=18}

This is only a starting list. The right database depends on the country, time period and type of information you're researching.

One Last Thing

A database can give you a number.

It can give you a location.

It can give you a name, a date, a category or a case record.

But it doesn't necessarily give you the story.

That's your job as the researcher.

Take the information, check what it means, follow it back to the original source and then use the next clue to keep digging.

And if two databases don't agree?

Don't immediately pick the number you like better.

Find out why they don't agree.

Different definitions, reporting periods, geographic coverage and collection methods can all produce different results.

That's not necessarily a problem.

It's a research question.

Ready for the Next Step?

Once you've found useful information in a database, you may need to go hunting for the original documents behind it.

That's where Court Records can help.

You can also head back to the True Crime Research Guide for the bigger picture on how to build a case research trail.

Find the database. Check what it measures. Follow the source. Then keep digging.