Take a look under the knife law and the Canada subforums as there is a bunch of info already there. But in short, depends on what city, what province, the officer (RCMP vs local for example) type of knife, and what the probable cause for the search was. In general if its a SAK, then general utility is a valid reason, cutting food or opening packages is as well. You don't necessarily need to tell the officer what package you intend to open, so long as you are not carrying knife that looks like you were planning on using for self defense, or you are silly enough to say such out loud. Remember that local laws can still trump federal if the bylaw makes it illegal to carry any knife in a public meeting place, or public transit. If you want to have a general utility knife just to have one on you, then get a Vic tinker and don't worry about it. If you have a specific knife in mind, then just keep it reasonable. To be honest, location, your age, dress, race/gender and attitude are probably bigger factors than what the knife is, so those might play a part. At the end of the day, its hard to say since it is such a situational thing. Lastly, I will say that letting a cop "find" a knife is generally a bad idea, when they begin a search they should say something like "is there anything I should know?" at that point your best bet is a pocket dump and be up front about it.