Statutory Instrument 83 of 2020. Public Health (COVID-19 Prevention, Containment and Treatment) (National Lockdown) Order, 2020by Government of Zimbabwein Legal - The Lawon Posted on March 30, 2020 Statutory Instrument 83 of 2020. Public Health (COVID-19 Prevention, Containment and Treatment) (National Lockdown) Order, 2020