Yesterday I tried to get up to Long Chieng and I was stopped by the army, from what I could tell, about 5km from the town itself. I can say that there are is a fair number of well equipted Milatary personel in the area. They tried to pull me over 5 times on the way up the Long Chieng trail, I played the stupid farang and waved to them and just kept going, this was until I hit a single landed bridge with a truck on it, at this point I had to stop and I was told in no uncertain terms, to go back the way I came.
The actual phrase that was used was , 'bang, bang' while he was pointing to me and then pointing to the road ahead.
Will do a trip report with a few photos in the next couple fo days if anybody is interested. Great ride and scenery up that way.