Accuracy and reliability

Overall accuracy

The data come from a single administrative register system storing information on all reported crimes. The statistics are based on police records of reported crime in the Police Case Analysis System (POLSAS) committed by persons aged 10–14. The statistics are therefore considered a good measure of recorded offences committed by minors. However, a small degree of uncertainty may arise due to registration errors or discrepancies between the time of the offence and the time of registration.

Sampling error

There is no sampling errors as the statistics are compiled on the basis of registers.

Non-sampling error

In addition to the aforementioned uncertainty resulting from discrepancies between the time of the offense and the time of registration, changes in legislation or registration practices may affect the statistics.

Quality management

Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.

Quality assurance

Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.

Quality assessment

The statistics are based on an administrative register containing nationwide records of reported crime that have come to the attention of the police. The statistics are therefore considered to provide a good description of recorded offences committed by persons aged 10–14. A small degree of uncertainty may arise due to registration errors and discrepancies between the time of the offence and the time of registration. When interpreting the results, it should be noted that the statistics describe recorded offences and not the total extent of crime committed by minors.

Data revision - policy

Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.

Data revision practice

Only final figures are published and are not later revised.