We've already seen how flexible it's the NK opinion of territorial waters... i don't wonder if they can consider a ship fishing "soon" their waters as a poaching.only thing is from some of the current reports is the fishing boats were inside Chinese waters at the time they were boarded, also this does not seem to be a take and arrest situation the fact that the Chinese goverment has not released a full press statement on this besides that they have made contact with the North over the mater and the fact the North has not made any mention on state TV that patrol ships had detained some fishing boats operating illegally in Norths waters seems to indicate even the North Koreans are not sure whats going on also if this a Naval unit that went out of control and is operating on its own accord it could be strong sign that Kim is not maintaining control but things are deteriorating in the North and the North does not want to mention it on state TV..
The fact that it sounds like the captors have threatened the crews lives indicates its not the goverment that's holding the crew in the North since even as desperate as Kim may be to strengthen his power grasp and make himself look strong I dont think he would authorize the killing of Chinese crews since that would force China to cut back even more on aid and what it does with the North..
And we've only the words of the chinese that obviously will never admit how far they went close to NK waters.
And about the "NK regine falling" ... it's 20years that we kept reading it... or well, from the end of the Korean War if we kept listening all the SK kept saying...
It's not more simple that NK don't want make a mess about this thing and kept a low profile of all the fact without giving news of it? I don't remember reading in KCNA when some time ago a NK guard shot and killed some chineses..
Simply because the NK doesn't want make seems the thing official and endanger too much the situation...
And about the threatening ...it's not maybe more reasonable that they said "Pay a bail/fine for both crew and ships or we will condemn in a NK court" it's seems quiet a logic action in such situation... more then speculations of North Korean/Chinese pirates on gunboats without no evidence except the words of those directly involved.
There are pretty photos of NK patrol boats and guardboats on Yalo and on the Chinese/NK borders... and they've not supposed to cellphone every time at Kim-III to issues of protection of fisheries. Probably the issue is under investigation by authorities and Kim-III sent some someone from Pyongyang to check that the situation does not becomes a crisis