Pleased to hear that the Police are investigating the leak.
Suspect they may be interested in today's Telegraph article whose authors claim to be in touch with someone close to the leaker(s) and quoting them as threatening other civil servants “This leak is a warning to all those other ambassadors who might be remoaners that whatever your personal views with Brexit don’t deliberately put a spanner in the works or you will get the chip as well”.
https://www.telegraph.co.uk/politics...ce-close-mole/