I would suspect that, in the eyes of such 'inspectors', a crucial question would be whether or not your construction labelled as "Junction Box" could be "opened without the use of a tool, wouldn't it? ... or was it perhaps already obvious that it could not be opened without a tool?.... I formed a junction box from a piece of the removed trunking and attatched it the using the existing 3/4" holes with 12 brass bushes & 24 lock rings:
.... After the works were completed it had to be inspected by the original electricians and they snagged the 'joints within the trunking'. My solution was to add a Dymo label, something like 'Junction Box'.
Kind Regards, John