https://ec.europa.eu/commission/sites/beta-political/files/aviation.pdf
https://eur-lex.europa.eu/eli/dir/2019/1152/oj
https://publiclawforeveryone.com/2017/06/10/does-the-salisbury-convention-apply-during-a-hung-parliament/
https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1059929/10032022_OFSI_General_Licence_Football_Matches_.pdf