Where can I find a database that compiles US/world criminal data with basic description of the crime? (Preferably with keyword search function) For example, something like:
Crime: homicide
Year: 20xx
Country/state: xxx
Criminal: husband
Victim: wife
How crime happened: criminal shot victim
nibrs has department-reported events
http://www.asdfree.com/search/label/national%20incident-based%20reporting%20system%20%28nibrs%29
ncvs is a complex sample survey
Besides NIBRS, there are many other open source data form provide county wide statistics, e.g., http://www.city-data.com/crime/crime-Durham-North-Carolina.html
Many cities also provide their crime statistics with frequent updates. For example, Durham Police Department provide interactive maps: http://gisweb.durhamnc.gov/gis_apps/crimedata/dsp_entryform.cfm
I have not seen one worldwide comprehensive source. Instead, I think you will need to find it per country. Typically, this information will be published by the country's National Judicial System or National Statistics Dept. The US Department of State does publish 'summary' statistics on other countries. Here is the home page for crime and safety reports per country:
https://www.osac.gov/pages/ContentReports.aspx?cid=2
Here are some sample links of home pages for crime statistics from the corresponding country:
USA: Federal Bureau of Investigations (FBI):
https://www.fbi.gov/about-us/cjis/ucr/ucr
Canada: National Statistics Department
http://www.statcan.gc.ca/tables-tableaux/sum-som/l01/cst01/legal50a-eng.htm
UK: Office for National Statistics:
http://www.ons.gov.uk/ons/taxonomy/index.html?nscl=Crime+and+Justice
Australia: Australian Institute of Criminology:
http://www.aic.gov.au/statistics/violent%20crime.html
Germany: Bundeskriminalamt ( Federal Criminal Police Office ) http://www.bka.de/nn_256982/EN/Publications/PoliceCrimeStatistics/policeCrimeStatistics__node.html?__nnn=true
The World Bank also has some 'coarse' statistics per country relating to crime. The link below is an example (# of homicides per 100K people):
http://data.worldbank.org/indicator/VC.IHR.PSRC.P5
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