What are New Zealand’s social bubble rules as UK considers system?

New Zealand has been widely praised for its approach to fighting the spread of coronavirus and for the country’s success in all but eliminating the virus. One of many measures implemented by Prime Minister Jacinda Ardern and her government to ease New Zealand’s lockdown restrictions has been to introduce a so-called ‘social bubble’ strategy to allow the public to socialise with people outside of their households. This model is one that the UK government is said to be considering when further easing lockdown over the next few months. But how does New Zealand’s social bubble strategy work and when will families and friends be able to see each other again in the UK?