http://www.legislation.gov.uk/uksi/2016/1085/madeThe Air Navigation (Restriction of Flying) (Croydon) (Emergency) Regulations 2016King's Printer of Acts of Parliament2016-11-10 The Air Navigation (Restriction of Flying) (Croydon) (Emergency) Regulations 2016RegulationsThe Air Navigation (Restriction of Flying) (Croydon) (Emergency) (Revocation) Regulations 2016reg. 2reg. 1