Reference metadata describe statistical concepts and methodologies used for the collection and generation of data. They provide information on data quality and, since they are strongly content-oriented, assist users in interpreting the data. Reference metadata, unlike structural metadata, can be decoupled from the data.
Enforcement of immigration legislation data (EIL statistics) contain statistical information based on Article 5 and 7 of the Regulation (EC) No 862/2007 as amended by the Regulation (EU) 2020/851 with reference to third-country nationals:
refused entry at the external border,
found to be illegally present,
ordered to leave,
returned following an order to leave.
3.2. Classification system
See table 3.2. in annex ‘Quality report tables EIL 2025’.
3.3. Coverage - sector
Migration and asylum – Enforcement of Immigration Legislation statistics
3.4. Statistical concepts and definitions
See table 3.4. in annex ‘Quality report tables EIL 2025’.
3.5. Statistical unit
Number of persons.
3.6. Statistical population
See table 3.6. in annex ‘Quality report tables EIL 2025’.
3.7. Reference area
Liechtenstein
3.8. Coverage - Time
See table 3.8. in annex ‘Quality report tables EIL 2025’.
3.9. Base period
Not applicable.
Number of persons.
Calendar quarter and calendar year.
6.1. Institutional Mandate - legal acts and other agreements
Regulation 862/2007.
Liechtenstein Foreigners Act.
6.2. Institutional Mandate - data sharing
Data is collected by Migration and Passport Office. Migration and Passport Office compiles EIL Statistics and creates CSV Files. Migration and Passport Office sends CSV Files to Liechtenstein Office of Statistics. Office of Statistics uploads the CSV Files via EDAMIS.
Employees are obliged to maintain confidentiality about official matters which, by their nature or in accordance with special regulations, must be kept secret. This obligation remains in force even after termination of the employment relationship (Art. 38 of the State Personnel Act).
8.1. Release calendar
No publication at national level.
8.2. Release calendar access
No publication at national level.
8.3. Release policy - user access
No publication at national level.
No publication at national level.
10.1. Dissemination format - News release
No publication at national level.
10.2. Dissemination format - Publications
No publication at national level.
10.3. Dissemination format - online database
No publication at national level.
10.3.1. Data tables - consultations
Not applicable.
10.4. Dissemination format - microdata access
No publication at national level.
10.5. Dissemination format - other
No publication at national level.
10.5.1. Metadata - consultations
Not applicable.
10.6. Documentation on methodology
Only guidelines and information provided by Eurostat are used.
10.6.1. Metadata completeness - rate
Not applicable.
10.7. Quality management - documentation
Not applicable.
11.1. Quality assurance
Due to small number of cases and full application of methodological standards and guidelines provided by Eurostat, quality of data is assured.
11.2. Quality management - assessment
Due to small quantity of data (low number of return cases) no data quality issues.
12.1. Relevance - User Needs
Data only used for reporting to Eurostat and Frontex.
12.2. Relevance - User Satisfaction
Data only used for reporting to Eurostat and Frontex.
12.3. Completeness
See table 12.3. in annex ‘Quality report tables EIL 2025’.
12.3.1. Data completeness - rate
Not applicable.
13.1. Accuracy - overall
No random or systematic errors identified.
13.2. Sampling error
Not applicable.
13.2.1. Sampling error - indicators
Not applicable.
13.3. Non-sampling error
No coverage, measurement, non-response, processing and model assumption errors identified.
13.3.1. Coverage error
See table 13.3.1. in annex ‘Quality report tables EIL 2025’.
13.3.1.1. Over-coverage - rate
Not applicable.
13.3.1.2. Common units - proportion
Not applicable.
13.3.2. Measurement error
No measurement error identified.
13.3.3. Non response error
Not applicable.
13.3.3.1. Unit non-response - rate
Not applicable.
13.3.3.2. Item non-response - rate
Not applicable.
13.3.4. Processing error
No processing errors identified.
13.3.5. Model assumption error
Not applicable.
14.1. Timeliness
In general, data is provided within the set time frame.
14.1.1. Time lag - first result
Not applicable.
14.1.2. Time lag - final result
Not applicable.
14.2. Punctuality
See table 14.2. in annex ‘Quality report tables EIL 2025’.
14.2.1. Punctuality - delivery and publication
Not applicable.
15.1. Comparability - geographical
Data is collected according to the guidelines and therefore geographically comparable with other countries.
15.1.1. Asymmetry for mirror flow statistics - coefficient
Not applicable.
15.2. Comparability - over time
See table 15.2. in annex ‘Quality report tables EIL 2025’.
15.2.1. Length of comparable time series
Not applicable.
15.3. Coherence - cross domain
See table 15.3. in annex ‘Quality report tables EIL 2025’.
15.3.1. Coherence - sub annual and annual statistics
Annual and subannual statistics are coherent.
15.3.2. Coherence - National Accounts
Not applicable.
15.4. Coherence - internal
Statistics are internally consistent.
On average 2 days of work per year performed by 1 person.
17.1. Data revision - policy
Not applicable.
17.2. Data revision - practice
See table 17.2. in annex ‘Quality report tables EIL 2025’.
17.2.1. Data revision - average size
Not applicable.
18.1. Source data
See table 18.1. in annex ‘Quality report tables EIL 2025’.
18.2. Frequency of data collection
Continous data collection.
18.3. Data collection
Information provided by national police, Swiss Border Guard Corps and Migration and Passport Office. All data is systematically collected by Migration and Passport Office.
18.4. Data validation
Due to small number of cases it ist possible to validate all reported data using the corresponding individual case file.
18.5. Data compilation
Not applicable. No operations as described performed on data.
18.5.1. Imputation - rate
Not applicable.
18.6. Adjustment
Adjustements are implemented immediately when necessary. E.g. in case of introducing new interational standards or in case of data quality issues.
18.6.1. Seasonal adjustment
No statistical technique applied.
Liechtenstein does not have an external schengen border, therefore some data categories are not applicable. Due to the small number of cases, data collection has full coverage and information is highly accurate.
Enforcement of immigration legislation data (EIL statistics) contain statistical information based on Article 5 and 7 of the Regulation (EC) No 862/2007 as amended by the Regulation (EU) 2020/851 with reference to third-country nationals:
refused entry at the external border,
found to be illegally present,
ordered to leave,
returned following an order to leave.
30 March 2026
See table 3.4. in annex ‘Quality report tables EIL 2025’.
Number of persons.
See table 3.6. in annex ‘Quality report tables EIL 2025’.
Liechtenstein
Calendar quarter and calendar year.
No random or systematic errors identified.
Number of persons.
Not applicable. No operations as described performed on data.
See table 18.1. in annex ‘Quality report tables EIL 2025’.
No publication at national level.
In general, data is provided within the set time frame.
Data is collected according to the guidelines and therefore geographically comparable with other countries.
See table 15.2. in annex ‘Quality report tables EIL 2025’.
