Entering South Africa on a foreign passport is illegal when in the possession of South African citizenship. If the holder is assumed to have renounced their South African citizenship because there is no evidence to suggest that they are ‘presently’-'once were' South African, then they may pass under the assumption of another state/ that citizen but when it seems that they are a South African citizen, then may they face interrogation when entering or leaving South Africa when entering on another passport. An example of a person still holding South African citizenship to the officer would be: a person (generally above 18) seeking entry with a British citizen passport describing them as above 18, having been born in Republic of South Africa and the person's passport states birth as Johannesburg, but the Home Affairs Officer detects that they last entered on a South African passport by an unknown method. This provision of the Citizenship Act (section 26(B)) only applies to adults ("major citizens").