Criminality Survey (Persons finally Sentenced)

Quality checks are made throughout the process, i.e. from the phase of data collection up to the compilation of tables. Use of experienced personnel involved in successive stages, as in the collection, which includes communication with administrative sources, initial verification at the coding of the Returns and the final assessment made after the tabulation of the data. This fact gives the staff the opportunity to have a global and timeliness picture of administrative sources under their responsibility. The data is validated through logical checks to identify and ultimately correct possible errors. When it identifies large differences in the number of decisions in relation to the prior years, they are further investigated in collaboration with administrative sources to confirm either that it is wrong or if they are real deviations. Additionally, the staff checks if the questionnaires from all the administrative sources of the Country have been collected and whether all the variables of the questionnaires have been correctly completed. Upon detection of such omissions they send reminders (through letters or telephone) to the involved administrative sources. Following the audit, crosschecks and comparisons made ​​at each stage, where any errors found are corrected and after making the necessary adjustments, the results obtained are of high quality.