1. Under section 36(1)(a) of the 2013 Constitution, a person born in Zimbabwe is a citizen by birth if either their mother or father was a Zimbabwean citizen at the time of birth; no further action is required to qualify for citizenship. 2. To prove parental citizenship status, acceptable documents include a birth certificate showing birth in Zimbabwe, a Zimbabwean passport, or a national identity card. 3. The burden of proof rests on the applicant to produce documentary evidence that their parent was a Zimbabwean citizen at the time of the applicant's birth. 4. Administrative requirements imposed by the Registrar General must comply with section 68(1) of the Constitution - they must be lawful, prompt, efficient, reasonable, proportionate, impartial and both substantively and procedurally fair. 5. Requiring a citizen residing abroad to travel to Zimbabwe for in-person interviews before issuing citizenship documents can constitute administrative conduct that is not efficient, prompt or proportionate, particularly where it places an undue financial burden on the applicant.