I would not be carrying it about in my belt on a public campsite, in fact I do not tend to use public campsites! This was just an example so I could gain feedback on what is reasonable.
I had always thought knife laws were going to be quite specific but having researched them over the past week or so it seems not and I was looking for a second opinion which as it happens seems to tally up with my own and that is one must be sensible about these things.
I always carry a knife in my pack when fishing or camping, and when in the woods i tend to keep it in my belt. What worried my about the ka-bar knife was the thumb stud for opening (assisted opening) and it being a lock knife, then again though you see Ray Mears in the woods wielding axes and machetes so I can only assume that onsite in obvious locations any knife like tool should be OK.
I'm still slightly concerned about the thumb stud but it can always be removed.
I have a turboflame military and have had no end of problems with it. The green paint chipped off on day one, by day 3 I was having problems lighting it, it then went through a nice period for about a week where it was lighting OK but the flame lock got stuck a few times and I burned myself on it.
Now I cannot get it to light at all. As I paid 25 bucks for it from a shop I am a little annoyed and they will not reply to my emails.
A quick look at Amazon shows you can pick it up for 7 bucks and there is no end to the terrible reviews.
Verdict: Looks good, lights well with a strong flame for a day or so, then slowly fails until the point where it is rendered useless. A nice paperweight.