Ronaldo

calling 999 from the boardwalk... Good luck! you may be calling mainland China police. I never had HK network over there.
Why not having the same camera systems as in front of the restricted area to cover the mudflats and have the police to control these illegal activities?
With cameras installed, this may also serve as a preventive action rather than simply being repressive and coming from time to time.
I am curious to know what are the penalties risked by these fishermen?

Ronaldo

What is meant by "the activity is deemed serious"??? Illegal but not serious???
And again, good luck for calling from the boardwalk...
Also, the fishermen probably already "know" that they have to do it within a limited time, say 3h...
Sorry but I can only be pessimistic about such (in)action.