By RNZ
Data from the Ministry of Health shows 27 people refused Covid-19 tests in managed isolation and quarantine (MIQ) facilities between the end of August and the first week of November.
Returnees are tested twice during their stay and the government can ask people who refuse tests to stay for longer.
New variants of Covid-19 has led the government to introduce a third test for people travelling from high risk countries like the United Kingdom and United States.