‘Cartographie criminelle’ in French. Criminal investigation based on the study of geographical data, which appeared in Canada over the course of the 19th century. If the English name is still used more, it’s because the discipline remained for a long time restricted to North America and England. But it is staring to be developed in other European countries. At the start, crime mapping involve drawing pins on maps which designated the different scenes of the same series of crimes. Over times the techniques involved developed and today better models as well as all the digitally stored and available information serve the discipline. At the same time other tends have increased. In the second half of the 20th century crime mapping gained new impetus with the emergence of environmental criminology, which systemises the influence of an environment on the geographical distribution of criminal events. Crime mapping can be operational or strategic.