The Met have apologised for arresting the 6 members of the republicans they arrested and have cancelled their bail. Haven’t seen anything about the night safety workers.
Comically, they don’t seem to have charged them for having things that they could use to lock onto things with on the basis that they couldn’t prove that was their intent. Which seems to be the sort of issue you’d think somebody would have identified before they made the law. Unless the intent was to just lock people up for hours and then release them without charge.