It does happen again of course.
1910 letter from Blyth Customs to the Board of Trade:
The Collector,
Blyth
Sir,
Encroachments on the foreshore at Amble
In accordance with pars. 275/777 Miscellaneous Code I beg to report that encroachments on the foreshore below high water mark close to the Coastguard Signal Station near Amble are now being carried on on a somewhat extensive scale. A large number of miners now out on strike at Amble have commenced blasting for coal on the sea shore where seams are apparent. I understand a 3 feet seam has been discovered and that from
forty to fifty tons per day are being got out and sold. Canvassers are going about in Amble endevouring to effect sales. The Chief Officer of Coastguard informs me that he has reported the matter to the Board of Trade.
Respectfully
R.J. Burgess, Supt.
[their underlining]
There is a note from the Board of Trade after this saying they should refer the matter to the Woods Office, but the author also states " unless they send an armed force I doubt they will be able to do much"