https://www.gov.uk/guidance/status-of-eu-nationals-in-the-uk-what-you-need-to-know
https://www.esri.ie/system/files/publications/WP677_0.pdf
https://ukandeu.ac.uk/wp-content/uploads/2021/03/Freeports.pdf
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/710147/DATA_-_FINAL.pdf