23 March 2020 – UK PM, Boris Johnson, announces strict lockdown measures, to be enforced by police

Type of Intervention: Executive Order, Specific Action
Sectors Involved: Executive Office
Intervention Categories: Social and physical distancing measures; Gatherings, businesses, and services; Domestic travel
Level of Jurisdiction: National
Lead People/Agency: PM, Police

Overview: PM Boris Johnson announces wide-ranging restrictions on freedom of movement, enforceable by law, effectively a full lockdown. Public gatherings limited to two people, and people are encouraged to stay at home.
Full details here: https://www.theguardian.com/world/2020/mar/23/boris-johnson-orders-uk-lockdown-to-be-enforced-by-police

Type of Justification: Advice of INTERNAL government advisory committee or group, Advice of EXTERNAL expert advisor or advisory committee, Considered a necessary escalation of current measures