The way I always judge these things, is not what I say to a Police officer but to a court. You would have to hope for a really useless prosecutor to get away with carrying something like that. I think some of the mods are already banned, which would make it worse.

I am looking hard at the Inova T series, esp the T1. Carrying anything that is modified for self defense use is against the law. Carrying anything for self defense use is against the law, people have been done for carrying rolled up newspapers, the use is all in the UK.

One thing to keep in mind is that in this modern world your blade or gun could be at home because you are in a certain type of public places.