Czech Police crime map

The crime map is a public service of the Police of the Czech Republic. It shows cases reported to the police or detected by them, with the time and the area where they happened. Location data go back to about mid-2013, and the police also publish them as open data.

What the map shows and what it does not

• For crimes, only selected types where publication has a preventive purpose and police tactics do not stand in the way: for example violent and property crime, drugs and extremism.

• Minor offences are not limited in this way.

• The data reflect the latest state while the police handled the case. They do not reflect how a public prosecutor or court later assessed it.

• These are reported and detected cases, not offences proven by a final judgment. The map does not capture crime nobody reported.

Why the map uses areas instead of addresses

The police do not publish exact locations, so that victims and suspects cannot be identified, especially in small municipalities. They divided the territory into areas (Voronoi polygons) and assigned each case to its area. Municipalities with few cases stayed whole. The areas do not match parts of municipalities and differ in size, so a number applies to the whole shaded area, not to a particular street or house.

How to read the numbers

A few cases a year are normal in a small municipality, and one more case changes the number a lot. Traffic offences depend mainly on where the police measure speed. The map is a source of information, not a rating of a place.

Frequently asked questions

Can the map tell what happened in a particular house?

No. The map only shows an area, and case locations are deliberately distorted.

Can the map include a case that did not happen?

Yes, the data reflect the state during the police investigation. The data include a status, for example that the act did not take place or is not a crime, but a later decision of a prosecutor or court is not reflected.