Well, to be honest, I will say ... no knives are allowed in Europe. But, there is a general "tacite agreement" with the authorities that make them close their eyes if you have your knife in "normal" situation (as outdoor) AND if you don't use it/ show it unnecessarily. It's the reason why I always hold it in my bag or in my pockets and never on my belt. For the kind of knife, a model 2 will be less appreciated by the authorities then a 23 or a 28. Hope it helps u.