
https://ec.europa.eu/commission/publications/position-paper-transmitted-eu27-ongoing-police-and-judicial-cooperation-criminal-matters_en

https://www.conservativehome.com/parliament/2018/07/our-brexit-plan-takes-back-control-of-money-laws-and-borders-and-heres-how-may-and-raabs-letter-to-conservative-mps.html

https://publications.parliament.uk/pa/cm201719/cmselect/cmbeis/380/380.pdf