Answer:
Victimization surveys
The completeness of the information provided by the administrative records is questionable, mainly due to the so-called “dark number” of the crime, that is, all those crimes that are not reported to the authorities and consequently are not reflected in any statistics. The victimization surveys are born with the objective of overcoming the obstacle of the “dark figure”, to know the phenomenon of criminal victimization and perceptions of justice, studying a representative part of the population , from such that, from this representative group, conclusions are drawn on the total population with a known level of confidence.
Explanation:
Global context
The first victimization surveys were conducted in the 1960s-70s [5] and as they were adopted more widely throughout the world, they were likely to be used to carry out comparative studies on crime and victimization at the international level. However, comparisons were impossible due to the disparity of methodologies used between one country and another, such as: different questionnaires, sampling scheme, interview method, crime classification, etc.
One of the first efforts to improve comparability between surveys occurs in 1987 in Europe, with the development of the International Survey on Crime and Victimization (ENICRIV or ICVS), with a questionnaire in English that was later translated into different languages, standardizing as much as possible the methodology used for data collection . Initially surveyed in 14 countries, later with the participation of the United Nations Interregional Institute for Research on Crime and Justice (UNICRI ) and UNODC, the survey expanded to other countries, Europe from the east, Africa and Latin America