For all those in the UK - Boris's new rule is complete nonsense.
There is no enforceable law.
The police have no jurisdiction to issue fines for anyone gathering in groups of more than 6 from next Monday... because it is not a criminal offence to do so, and the police can only deal with crime.
Therefore you can all just ignore this ridiculous new "rule" because it's unenforceable - completely - the government are lying to the masses once again, so do not be bullied and intimidated into restricting yourselves - it is not against the law because there has been no law written, and even s21 of the coronavirus act 2020 which is written under civil law (not criminal law) is not legally enforceable, because it speaks in terms of "directions" that issue orders to force this that and the other, but only the judiciary, (courts and judges) have the power to issue directions; the only directions a government minister can make, are to do with finances.
Therefore, everyone, just ignore all of this, because none of what the government are saying is true or enforceable, and none of it would ever hold up in a court of law - the government know this and are just trying to scare people into submission.
Do not be afraid, you are the ones with authority not the government, because we are sovereign, and your sovereignty affords you free will, personal boundaries and the right to say NO.
The government are your servants = civil servants.
You do not live in a dictatorship, you live in a representative democracy, therefore no one in the government, including the prime minister, has the power or authority to tell you what to do, they cannot dictate to you, so do not be bullied into submission.