
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/868874/The_Future_Relationship_with_the_EU.pdf

https://insightcrime.org/wp-content/uploads/2023/06/HGBF-US-Policy-OC-and-Migration-Policy-Brief-InSight-Crime-June-2023-FINAL-ENG.pdf

https://publications.parliament.uk/pa/ld201719/ldselect/ldeucom/15/15.pdf