Caveman,
At last - I can say something about a subject I really understand something about...
The law in Israel is somewhat similar to the old law in England (it is based on it, and many pats of it has not been changed or were slightly modified)
Anyway - basically: you are NOT allowed to carry a knife at all. That is - unless you have a good cause for it.
A knife is defined as an edged tool with either of the conditions set forth:
A blade longer then 10 Cm (roughly 4 inches) OR a blade that is lockable in any manner.
If your tool has a blade of less then 10cm AND is UN-lockable - then you can carry it at will (most SAK qualify)
This translates to - any modern safe and reasonable folder is considered a knife, and knives - as stated above - are illegal to carry. Unless you have a reasonable and justifiable cause to carry them.
Complicated? We are only starting.
A few reasons were seen as reasonable by Israeli courts during the years - Conducting ones business (if your line of work requires the daily use of a knife, pilling oranges (I am not kidding) etc.
The problem lies in the ETC. - no one can tell what cause will be regarded as a reasonable one by a specific court.
Add to that the fact that the real decision shall be made by a police officer that is not bound by the constitution (we still don't have one) and you realize how painful this may turn.
My advice to you is as follows:
You are a tourist - so you eat outside, have picnics, cut your own food etc. - for this reason you need a knife. DO NOT - by no means - refer to your knife as a self-defense weapon - this is sure to lead you into trouble.
Also - try to avoid Fantasy looking scary blades - go for the plain looking versions.
And above all -dress, behave and talk like a gentleman - and your knife become a gentleman's tool.
Act like a caveman.... oops.
You get the drift.
BTW - the fact you see soldiers and civilians alike carrying full auto weapons and handguns DOES NOT as of itself mean YOU can carry anything...
Email me for further instructions.
Gadi